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<h2><span class="refentrytitle"><a name="dbus-glib-Specializable-GType-System.top_of_page"></a>Specializable GType System</span></h2>
<p>Specializable GType System — Specialized GTypes</p>
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<a name="dbus-glib-Specializable-GType-System.stability-level"></a><h2>Stability Level</h2>
Unstable, unless otherwise indicated
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<a name="dbus-glib-Specializable-GType-System.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <dbus/dbus-glib.h>
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIterator" title="DBusGTypeSpecializedCollectionIterator ()">*DBusGTypeSpecializedCollectionIterator</a>)
(<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIterator" title="DBusGTypeSpecializedMapIterator ()">*DBusGTypeSpecializedMapIterator</a>) (<em class="parameter"><code>const <span class="type">GValue</span> *key_val</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *value_val</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext">DBusGTypeSpecializedAppendContext</a>;
<span class="returnvalue">gpointer</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedConstructor" title="DBusGTypeSpecializedConstructor ()">*DBusGTypeSpecializedConstructor</a>) (<em class="parameter"><code><span class="type">GType</span> type</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedFreeFunc" title="DBusGTypeSpecializedFreeFunc ()">*DBusGTypeSpecializedFreeFunc</a>) (<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> val</code></em>);
<span class="returnvalue">gpointer</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCopyFunc" title="DBusGTypeSpecializedCopyFunc ()">*DBusGTypeSpecializedCopyFunc</a>) (<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> src</code></em>);
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedVtable" title="DBusGTypeSpecializedVtable">DBusGTypeSpecializedVtable</a>;
<span class="returnvalue">gboolean</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionFixedAccessorFunc" title="DBusGTypeSpecializedCollectionFixedAccessorFunc ()">*DBusGTypeSpecializedCollectionFixedAccessorFunc</a>)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> *values</code></em>,
<em class="parameter"><code><span class="type">guint</span> *len</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIteratorFunc" title="DBusGTypeSpecializedCollectionIteratorFunc ()">*DBusGTypeSpecializedCollectionIteratorFunc</a>)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIterator" title="DBusGTypeSpecializedCollectionIterator ()"><span class="type">DBusGTypeSpecializedCollectionIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionAppendFunc" title="DBusGTypeSpecializedCollectionAppendFunc ()">*DBusGTypeSpecializedCollectionAppendFunc</a>)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionEndAppendFunc" title="DBusGTypeSpecializedCollectionEndAppendFunc ()">*DBusGTypeSpecializedCollectionEndAppendFunc</a>)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable">DBusGTypeSpecializedCollectionVtable</a>;
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIteratorFunc" title="DBusGTypeSpecializedMapIteratorFunc ()">*DBusGTypeSpecializedMapIteratorFunc</a>)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIterator" title="DBusGTypeSpecializedMapIterator ()"><span class="type">DBusGTypeSpecializedMapIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapAppendFunc" title="DBusGTypeSpecializedMapAppendFunc ()">*DBusGTypeSpecializedMapAppendFunc</a>)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *key</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapVtable" title="DBusGTypeSpecializedMapVtable">DBusGTypeSpecializedMapVtable</a>;
<span class="returnvalue">gboolean</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructGetMember" title="DBusGTypeSpecializedStructGetMember ()">*DBusGTypeSpecializedStructGetMember</a>)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *ret_value</code></em>);
<span class="returnvalue">gboolean</span> (<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructSetMember" title="DBusGTypeSpecializedStructSetMember ()">*DBusGTypeSpecializedStructSetMember</a>)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *new_value</code></em>);
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructVtable" title="DBusGTypeSpecializedStructVtable">DBusGTypeSpecializedStructVtable</a>;
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-collection" title="dbus_g_type_get_collection ()">dbus_g_type_get_collection</a> (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> specialization</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()">dbus_g_type_get_map</a> (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> key_specialization</code></em>,
<em class="parameter"><code><span class="type">GType</span> value_specialization</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-structv" title="dbus_g_type_get_structv ()">dbus_g_type_get_structv</a> (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">guint</span> num_members</code></em>,
<em class="parameter"><code><span class="type">GType</span> *types</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()">dbus_g_type_get_struct</a> (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> first_type</code></em>,
<em class="parameter"><code>...</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-is-collection" title="dbus_g_type_is_collection ()">dbus_g_type_is_collection</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-is-map" title="dbus_g_type_is_map ()">dbus_g_type_is_map</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-is-struct" title="dbus_g_type_is_struct ()">dbus_g_type_is_struct</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-collection-specialization" title="dbus_g_type_get_collection_specialization ()">dbus_g_type_get_collection_specialization</a>
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map-key-specialization" title="dbus_g_type_get_map_key_specialization ()">dbus_g_type_get_map_key_specialization</a>
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map-value-specialization" title="dbus_g_type_get_map_value_specialization ()">dbus_g_type_get_map_value_specialization</a>
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct-member-type" title="dbus_g_type_get_struct_member_type ()">dbus_g_type_get_struct_member_type</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>);
<span class="returnvalue">guint</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct-size" title="dbus_g_type_get_struct_size ()">dbus_g_type_get_struct_size</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">gpointer</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-construct" title="dbus_g_type_specialized_construct ()">dbus_g_type_specialized_construct</a> (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()">dbus_g_type_specialized_init_append</a> (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-collection-append" title="dbus_g_type_specialized_collection_append ()">dbus_g_type_specialized_collection_append</a>
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *elt</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-collection-end-append" title="dbus_g_type_specialized_collection_end_append ()">dbus_g_type_specialized_collection_end_append</a>
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-map-append" title="dbus_g_type_specialized_map_append ()">dbus_g_type_specialized_map_append</a> (<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *key</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-get-fixed" title="dbus_g_type_collection_get_fixed ()">dbus_g_type_collection_get_fixed</a> (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> *data_ret</code></em>,
<em class="parameter"><code><span class="type">guint</span> *len_ret</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-value-iterate" title="dbus_g_type_collection_value_iterate ()">dbus_g_type_collection_value_iterate</a>
(<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIterator" title="DBusGTypeSpecializedCollectionIterator ()"><span class="type">DBusGTypeSpecializedCollectionIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-map-value-iterate" title="dbus_g_type_map_value_iterate ()">dbus_g_type_map_value_iterate</a> (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIterator" title="DBusGTypeSpecializedMapIterator ()"><span class="type">DBusGTypeSpecializedMapIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-get-member" title="dbus_g_type_struct_get_member ()">dbus_g_type_struct_get_member</a> (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *dest</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-set-member" title="dbus_g_type_struct_set_member ()">dbus_g_type_struct_set_member</a> (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *src</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-get" title="dbus_g_type_struct_get ()">dbus_g_type_struct_get</a> (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>...</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-set" title="dbus_g_type_struct_set ()">dbus_g_type_struct_set</a> (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>...</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init" title="dbus_g_type_specialized_init ()">dbus_g_type_specialized_init</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-register-collection" title="dbus_g_type_register_collection ()">dbus_g_type_register_collection</a> (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable"><span class="type">DBusGTypeSpecializedCollectionVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-register-map" title="dbus_g_type_register_map ()">dbus_g_type_register_map</a> (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapVtable" title="DBusGTypeSpecializedMapVtable"><span class="type">DBusGTypeSpecializedMapVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);
const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapVtable" title="DBusGTypeSpecializedMapVtable"><span class="returnvalue">DBusGTypeSpecializedMapVtable</span></a> * <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-map-peek-vtable" title="dbus_g_type_map_peek_vtable ()">dbus_g_type_map_peek_vtable</a>
(<em class="parameter"><code><span class="type">GType</span> map_type</code></em>);
const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable"><span class="returnvalue">DBusGTypeSpecializedCollectionVtable</span></a> * <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-peek-vtable" title="dbus_g_type_collection_peek_vtable ()">dbus_g_type_collection_peek_vtable</a>
(<em class="parameter"><code><span class="type">GType</span> collection_type</code></em>);
const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructVtable" title="DBusGTypeSpecializedStructVtable"><span class="returnvalue">DBusGTypeSpecializedStructVtable</span></a> * <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-peek-vtable" title="dbus_g_type_struct_peek_vtable ()">dbus_g_type_struct_peek_vtable</a>
(<em class="parameter"><code><span class="type">GType</span> struct_type</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-register-struct" title="dbus_g_type_register_struct ()">dbus_g_type_register_struct</a> (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructVtable" title="DBusGTypeSpecializedStructVtable"><span class="type">DBusGTypeSpecializedStructVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);
<span class="returnvalue">GVariant</span> * <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-value-build-g-variant" title="dbus_g_value_build_g_variant ()">dbus_g_value_build_g_variant</a> (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-value-parse-g-variant" title="dbus_g_value_parse_g_variant ()">dbus_g_value_parse_g_variant</a> (<em class="parameter"><code><span class="type">GVariant</span> *variant</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-BOOLEAN-ARRAY:CAPS" title="DBUS_TYPE_G_BOOLEAN_ARRAY">DBUS_TYPE_G_BOOLEAN_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-UCHAR-ARRAY:CAPS" title="DBUS_TYPE_G_UCHAR_ARRAY">DBUS_TYPE_G_UCHAR_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-UINT-ARRAY:CAPS" title="DBUS_TYPE_G_UINT_ARRAY">DBUS_TYPE_G_UINT_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-INT-ARRAY:CAPS" title="DBUS_TYPE_G_INT_ARRAY">DBUS_TYPE_G_INT_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-UINT64-ARRAY:CAPS" title="DBUS_TYPE_G_UINT64_ARRAY">DBUS_TYPE_G_UINT64_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-INT64-ARRAY:CAPS" title="DBUS_TYPE_G_INT64_ARRAY">DBUS_TYPE_G_INT64_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-OBJECT-ARRAY:CAPS" title="DBUS_TYPE_G_OBJECT_ARRAY">DBUS_TYPE_G_OBJECT_ARRAY</a>
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-STRING-STRING-HASHTABLE:CAPS" title="DBUS_TYPE_G_STRING_STRING_HASHTABLE">DBUS_TYPE_G_STRING_STRING_HASHTABLE</a>
typedef <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGSignature" title="DBusGSignature">DBusGSignature</a>;
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-SIGNATURE:CAPS" title="DBUS_TYPE_G_SIGNATURE">DBUS_TYPE_G_SIGNATURE</a>
typedef <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGObjectPath" title="DBusGObjectPath">DBusGObjectPath</a>;
#define <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-OBJECT-PATH:CAPS" title="DBUS_TYPE_G_OBJECT_PATH">DBUS_TYPE_G_OBJECT_PATH</a>
</pre>
</div>
<div class="refsect1">
<a name="dbus-glib-Specializable-GType-System.description"></a><h2>Description</h2>
<p>
Specialized gtypes are basically a way to allow the definition of
recursive <span class="type">GTypes</span>. It allows the definition of 'containers' which is
basically a user defined structure capable of holding other data, and a
set of functions defining how to access that structure. Containers come in
3 flavors: collections, maps and structs.
</p>
<p>
A collection is a container that holds an ordered set of items, all
of which must be the same type. (This is an <span class="emphasis"><em>array</em></span>
in standard D-Bus terminology.) dbus-glib specialized collections can be
<span class="type">GArray</span> (for numeric elements), <span class="type">GPtrArray</span> (for string, object or
boxed elements), <span class="type">GSList</span> (for boxed elements, not recommended), or a
user-defined type.
</p>
<p>
A map is a container that holds a set of key/value pairs.
The keys have one type, and the values another; the type of the keys
must be a numeric or string-like type. (This is a <span class="emphasis"><em>dict</em></span>
(dictionary) or <span class="emphasis"><em>array of dict entry</em></span> in standard D-Bus
terminology.) dbus-glib specialized maps can be <span class="type">GHashTable</span> or a
user-defined type.
</p>
<p>
A struct is a container that holds a fixed number of members, each member
having a predefined type. (This is a <span class="emphasis"><em>struct</em></span> in
standard D-Bus terminology.) It is analogous to the C <em class="parameter"><code>struct</code></em> keyword, but
dbus-glib does not generally represent D-Bus structs in C structs.
dbus-glib specialized structs can be <span class="type">GValueArray</span> or a user-defined type.
</p>
<p>
A specialization is a GType detailing a particular container with
particular types (a type specialization).
</p>
<p>
Functions are provided for constructing and manipulating specializations.
</p>
<p>
This documentation needs splitting into two pages, one for defining new
containers and using existing containers. I expect most users to only do
the latter. I also need to add some examples.
</p>
</div>
<div class="refsect1">
<a name="dbus-glib-Specializable-GType-System.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionIterator"></a><h3>DBusGTypeSpecializedCollectionIterator ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedCollectionIterator)
(<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
A library-user-supplied function, called for each element in the
collection when <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-value-iterate" title="dbus_g_type_collection_value_iterate ()"><code class="function">dbus_g_type_collection_value_iterate()</code></a> is called.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>an element of the collection</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>the data supplied when calling
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-value-iterate" title="dbus_g_type_collection_value_iterate ()"><code class="function">dbus_g_type_collection_value_iterate()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedMapIterator"></a><h3>DBusGTypeSpecializedMapIterator ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedMapIterator) (<em class="parameter"><code>const <span class="type">GValue</span> *key_val</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *value_val</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
A library-user-supplied function, called for each key/value pair in the
collection when <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-map-value-iterate" title="dbus_g_type_map_value_iterate ()"><code class="function">dbus_g_type_map_value_iterate()</code></a> is called.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>key_val</code></em> :</span></p></td>
<td>a key from the map</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value_val</code></em> :</span></p></td>
<td>a value from the map</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>the data supplied when calling
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-map-value-iterate" title="dbus_g_type_map_value_iterate ()"><code class="function">dbus_g_type_map_value_iterate()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedAppendContext"></a><h3>DBusGTypeSpecializedAppendContext</h3>
<pre class="programlisting">typedef struct {
/* public */
GValue *val;
GType specialization_type;
} DBusGTypeSpecializedAppendContext;
</pre>
<p>
A context for appending. There are more fields, which are private.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><span class="type">GValue</span> *<em class="structfield"><code><a name="DBusGTypeSpecializedAppendContext.val"></a>val</code></em>;</span></p></td>
<td>the <span class="type">GValue</span> containing the array to which you're appending</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">GType</span> <em class="structfield"><code><a name="DBusGTypeSpecializedAppendContext.specialization-type"></a>specialization_type</code></em>;</span></p></td>
<td>the <span class="type">GType</span> of the array's elements</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedConstructor"></a><h3>DBusGTypeSpecializedConstructor ()</h3>
<pre class="programlisting"><span class="returnvalue">gpointer</span> (*DBusGTypeSpecializedConstructor) (<em class="parameter"><code><span class="type">GType</span> type</code></em>);</pre>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized boxed type</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedFreeFunc"></a><h3>DBusGTypeSpecializedFreeFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedFreeFunc) (<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> val</code></em>);</pre>
<p>
Frees <em class="parameter"><code>val</code></em> according to <em class="parameter"><code>type</code></em>. This is analogous to <span class="type">GBoxedFreeFunc</span>, but
can use information from <em class="parameter"><code>type</code></em> (for instance to free the contents of a
container before freeing the actual container).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCopyFunc"></a><h3>DBusGTypeSpecializedCopyFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">gpointer</span> (*DBusGTypeSpecializedCopyFunc) (<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> src</code></em>);</pre>
<p>
Copies <em class="parameter"><code>src</code></em> according to <em class="parameter"><code>type</code></em>. This is analogous to <span class="type">GBoxedCopyFunc</span>, but
can use information from <em class="parameter"><code>type</code></em> (for instance to copy each element of a
collection).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a deep copy of <em class="parameter"><code>src</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedVtable"></a><h3>DBusGTypeSpecializedVtable</h3>
<pre class="programlisting">typedef struct {
DBusGTypeSpecializedConstructor constructor;
DBusGTypeSpecializedFreeFunc free_func;
DBusGTypeSpecializedCopyFunc copy_func;
GDestroyNotify simple_free_func; /* for type-independent freeing if possible */
} DBusGTypeSpecializedVtable;
</pre>
<p>
A table of methods used to implement specialized container behaviour on
user-defined collections, maps and structs. Exactly one of <em class="parameter"><code>free_func</code></em> and
<em class="parameter"><code>simple_free_func</code></em> must be implemented; the other must be <code class="literal">NULL</code>.
<em class="parameter"><code>constructor</code></em> and <em class="parameter"><code>copy_func</code></em> must always be implemented.
</p>
<p>
There are additional members, which are reserved for future expansion and
must be <code class="literal">NULL</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedConstructor" title="DBusGTypeSpecializedConstructor ()"><span class="type">DBusGTypeSpecializedConstructor</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedVtable.constructor"></a>constructor</code></em>;</span></p></td>
<td>returns a new, blank instance of the <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedFreeFunc" title="DBusGTypeSpecializedFreeFunc ()"><span class="type">DBusGTypeSpecializedFreeFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedVtable.free-func"></a>free_func</code></em>;</span></p></td>
<td>if not <code class="literal">NULL</code>, frees the <em class="parameter"><code>type</code></em> instance <em class="parameter"><code>val</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCopyFunc" title="DBusGTypeSpecializedCopyFunc ()"><span class="type">DBusGTypeSpecializedCopyFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedVtable.copy-func"></a>copy_func</code></em>;</span></p></td>
<td>returns a "deep copy" of the <em class="parameter"><code>type</code></em> instance <em class="parameter"><code>val</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">GDestroyNotify</span> <em class="structfield"><code><a name="DBusGTypeSpecializedVtable.simple-free-func"></a>simple_free_func</code></em>;</span></p></td>
<td>if not <code class="literal">NULL</code>, frees its argument</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionFixedAccessorFunc"></a><h3>DBusGTypeSpecializedCollectionFixedAccessorFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> (*DBusGTypeSpecializedCollectionFixedAccessorFunc)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> *values</code></em>,
<em class="parameter"><code><span class="type">guint</span> *len</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-get-fixed" title="dbus_g_type_collection_get_fixed ()"><code class="function">dbus_g_type_collection_get_fixed()</code></a> for a <span class="type">GValue</span> with type
<em class="parameter"><code>type</code></em>, containing <em class="parameter"><code>instance</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized collection boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>values</code></em> :</span></p></td>
<td>used to return a pointer to the contents of <em class="parameter"><code>instance</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>used to return the number of elements in <em class="parameter"><code>instance</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> on success</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionIteratorFunc"></a><h3>DBusGTypeSpecializedCollectionIteratorFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedCollectionIteratorFunc)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIterator" title="DBusGTypeSpecializedCollectionIterator ()"><span class="type">DBusGTypeSpecializedCollectionIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-value-iterate" title="dbus_g_type_collection_value_iterate ()"><code class="function">dbus_g_type_collection_value_iterate()</code></a> for a <span class="type">GValue</span> with
type <em class="parameter"><code>type</code></em>, containing <em class="parameter"><code>instance</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized collection boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iterator</code></em> :</span></p></td>
<td>the function to call for each element</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>data to pass to <em class="parameter"><code>iterator</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionAppendFunc"></a><h3>DBusGTypeSpecializedCollectionAppendFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedCollectionAppendFunc)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-collection-append" title="dbus_g_type_specialized_collection_append ()"><code class="function">dbus_g_type_specialized_collection_append()</code></a>.
</p>
<p>
This function should use the <em class="parameter"><code>val</code></em> and <em class="parameter"><code>specialization_type</code></em> members of <em class="parameter"><code>ctx</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>an appending context returned by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a value to copy into the collection</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionEndAppendFunc"></a><h3>DBusGTypeSpecializedCollectionEndAppendFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedCollectionEndAppendFunc)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-collection-end-append" title="dbus_g_type_specialized_collection_end_append ()"><code class="function">dbus_g_type_specialized_collection_end_append()</code></a>.
</p>
<p>
This function should use the <em class="parameter"><code>val</code></em> and <em class="parameter"><code>specialization_type</code></em> members of <em class="parameter"><code>ctx</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>an appending context returned by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedCollectionVtable"></a><h3>DBusGTypeSpecializedCollectionVtable</h3>
<pre class="programlisting">typedef struct {
DBusGTypeSpecializedVtable base_vtable;
DBusGTypeSpecializedCollectionFixedAccessorFunc fixed_accessor;
DBusGTypeSpecializedCollectionIteratorFunc iterator;
DBusGTypeSpecializedCollectionAppendFunc append_func;
DBusGTypeSpecializedCollectionEndAppendFunc end_append_func;
} DBusGTypeSpecializedCollectionVtable;
</pre>
<p>
A table of methods used to implement specialized collection behaviour
on user-defined types. At least <em class="parameter"><code>iterator</code></em> and <em class="parameter"><code>append_func</code></em> must be
implemented.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedVtable" title="DBusGTypeSpecializedVtable"><span class="type">DBusGTypeSpecializedVtable</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedCollectionVtable.base-vtable"></a>base_vtable</code></em>;</span></p></td>
<td>base methods shared between collections and other types</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionFixedAccessorFunc" title="DBusGTypeSpecializedCollectionFixedAccessorFunc ()"><span class="type">DBusGTypeSpecializedCollectionFixedAccessorFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedCollectionVtable.fixed-accessor"></a>fixed_accessor</code></em>;</span></p></td>
<td>if not <code class="literal">NULL</code>, provides access to the contents of this
collection, as documented for <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-get-fixed" title="dbus_g_type_collection_get_fixed ()"><code class="function">dbus_g_type_collection_get_fixed()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIteratorFunc" title="DBusGTypeSpecializedCollectionIteratorFunc ()"><span class="type">DBusGTypeSpecializedCollectionIteratorFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedCollectionVtable.iterator"></a>iterator</code></em>;</span></p></td>
<td>iterates through the members of <em class="parameter"><code>instance</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionAppendFunc" title="DBusGTypeSpecializedCollectionAppendFunc ()"><span class="type">DBusGTypeSpecializedCollectionAppendFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedCollectionVtable.append-func"></a>append_func</code></em>;</span></p></td>
<td>appends a new member to <em class="parameter"><code>instance</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionEndAppendFunc" title="DBusGTypeSpecializedCollectionEndAppendFunc ()"><span class="type">DBusGTypeSpecializedCollectionEndAppendFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedCollectionVtable.end-append-func"></a>end_append_func</code></em>;</span></p></td>
<td>if not <code class="literal">NULL</code>, called after each group of calls to
the <em class="parameter"><code>append_func</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedMapIteratorFunc"></a><h3>DBusGTypeSpecializedMapIteratorFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedMapIteratorFunc)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIterator" title="DBusGTypeSpecializedMapIterator ()"><span class="type">DBusGTypeSpecializedMapIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-map-value-iterate" title="dbus_g_type_map_value_iterate ()"><code class="function">dbus_g_type_map_value_iterate()</code></a> for a <span class="type">GValue</span> with
type <em class="parameter"><code>type</code></em>, containing <em class="parameter"><code>instance</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized map boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iterator</code></em> :</span></p></td>
<td>the function to call for each key/value pair</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>data to pass to <em class="parameter"><code>iterator</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedMapAppendFunc"></a><h3>DBusGTypeSpecializedMapAppendFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*DBusGTypeSpecializedMapAppendFunc)
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *key</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-map-append" title="dbus_g_type_specialized_map_append ()"><code class="function">dbus_g_type_specialized_map_append()</code></a>.
</p>
<p>
This function should use the <em class="parameter"><code>val</code></em> and <em class="parameter"><code>specialization_type</code></em> members of <em class="parameter"><code>ctx</code></em>,
and replace any existing value with key equal to <em class="parameter"><code>key</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>an appending context returned by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key</code></em> :</span></p></td>
<td>a key to add to the collection</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a value to add to the collection</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedMapVtable"></a><h3>DBusGTypeSpecializedMapVtable</h3>
<pre class="programlisting">typedef struct {
DBusGTypeSpecializedVtable base_vtable;
DBusGTypeSpecializedMapIteratorFunc iterator;
DBusGTypeSpecializedMapAppendFunc append_func;
} DBusGTypeSpecializedMapVtable;
</pre>
<p>
A table of methods used to implement specialized collection behaviour
on user-defined types. Both methods must be implemented.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedVtable" title="DBusGTypeSpecializedVtable"><span class="type">DBusGTypeSpecializedVtable</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedMapVtable.base-vtable"></a>base_vtable</code></em>;</span></p></td>
<td>base methods shared between maps and other types</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIteratorFunc" title="DBusGTypeSpecializedMapIteratorFunc ()"><span class="type">DBusGTypeSpecializedMapIteratorFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedMapVtable.iterator"></a>iterator</code></em>;</span></p></td>
<td>iterates through the members of <em class="parameter"><code>instance</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapAppendFunc" title="DBusGTypeSpecializedMapAppendFunc ()"><span class="type">DBusGTypeSpecializedMapAppendFunc</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedMapVtable.append-func"></a>append_func</code></em>;</span></p></td>
<td>adds a new key/value pair to <em class="parameter"><code>instance</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedStructGetMember"></a><h3>DBusGTypeSpecializedStructGetMember ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> (*DBusGTypeSpecializedStructGetMember)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *ret_value</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-get-member" title="dbus_g_type_struct_get_member ()"><code class="function">dbus_g_type_struct_get_member()</code></a> for a <span class="type">GValue</span> with type <em class="parameter"><code>type</code></em>,
containing <em class="parameter"><code>instance</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized struct boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>the index of the member, starting from 0</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ret_value</code></em> :</span></p></td>
<td>an initialized <span class="type">GValue</span> of the appropriate type for the given
member of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> on success</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedStructSetMember"></a><h3>DBusGTypeSpecializedStructSetMember ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> (*DBusGTypeSpecializedStructSetMember)
(<em class="parameter"><code><span class="type">GType</span> type</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> instance</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *new_value</code></em>);</pre>
<p>
Implements <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-struct-set-member" title="dbus_g_type_struct_set_member ()"><code class="function">dbus_g_type_struct_set_member()</code></a> for a <span class="type">GValue</span> with type <em class="parameter"><code>type</code></em>,
containing <em class="parameter"><code>instance</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>a specialized struct boxed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
<td>an instance of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>the index of the member, starting from 0</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>new_value</code></em> :</span></p></td>
<td>an initialized <span class="type">GValue</span> of the appropriate type for the given
member of <em class="parameter"><code>type</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> on success</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGTypeSpecializedStructVtable"></a><h3>DBusGTypeSpecializedStructVtable</h3>
<pre class="programlisting">typedef struct {
DBusGTypeSpecializedVtable base_vtable;
DBusGTypeSpecializedStructGetMember get_member;
DBusGTypeSpecializedStructSetMember set_member;
} DBusGTypeSpecializedStructVtable;
</pre>
<p>
A table of methods used to implement specialized collection behaviour
on user-defined types. Both methods must be implemented.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedVtable" title="DBusGTypeSpecializedVtable"><span class="type">DBusGTypeSpecializedVtable</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedStructVtable.base-vtable"></a>base_vtable</code></em>;</span></p></td>
<td>base methods shared between maps and other types</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructGetMember" title="DBusGTypeSpecializedStructGetMember ()"><span class="type">DBusGTypeSpecializedStructGetMember</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedStructVtable.get-member"></a>get_member</code></em>;</span></p></td>
<td>returns a member by its index</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructSetMember" title="DBusGTypeSpecializedStructSetMember ()"><span class="type">DBusGTypeSpecializedStructSetMember</span></a> <em class="structfield"><code><a name="DBusGTypeSpecializedStructVtable.set-member"></a>set_member</code></em>;</span></p></td>
<td>sets a member by its index</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-collection"></a><h3>dbus_g_type_get_collection ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_collection (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> specialization</code></em>);</pre>
<p>
Gets a <span class="type">GType</span> for a particular collection instance,
creating the type if not already created.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>container</code></em> :</span></p></td>
<td>a string specifying a registered collection type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>specialization</code></em> :</span></p></td>
<td>
<span class="type">GType</span> of collection elements</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <span class="type">GType</span> of that instance</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-map"></a><h3>dbus_g_type_get_map ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_map (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> key_specialization</code></em>,
<em class="parameter"><code><span class="type">GType</span> value_specialization</code></em>);</pre>
<p>
Gets a <span class="type">GType</span> for a particular map instance,
creating the type if not already created.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>container</code></em> :</span></p></td>
<td>a string specifying a registered map type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key_specialization</code></em> :</span></p></td>
<td>
<span class="type">GType</span> of keys</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value_specialization</code></em> :</span></p></td>
<td>
<span class="type">GType</span> of values</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <span class="type">GType</span> of that instance</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-structv"></a><h3>dbus_g_type_get_structv ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_structv (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">guint</span> num_members</code></em>,
<em class="parameter"><code><span class="type">GType</span> *types</code></em>);</pre>
<p>
Gets a <span class="type">GType</span> for a particular struct instance,
creating the type if not already created.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>container</code></em> :</span></p></td>
<td>a string specifying a registered struct type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>num_members</code></em> :</span></p></td>
<td>number of members in the struct</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>types</code></em> :</span></p></td>
<td>an array specufying a GType for each struct element</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <span class="type">GType</span> of that instance</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-struct"></a><h3>dbus_g_type_get_struct ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_struct (<em class="parameter"><code>const <span class="type">char</span> *container</code></em>,
<em class="parameter"><code><span class="type">GType</span> first_type</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>
Varags methsod to get a <span class="type">GType</span> for a particular struct instance,
creating the type if not already created.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>container</code></em> :</span></p></td>
<td>a string specifying a registered struct type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>first_type</code></em> :</span></p></td>
<td>
<span class="type">GType</span> for the struct's first member</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>more GTypes for the struct's members, terminated by G_TYPE_INVALID</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <span class="type">GType</span> of that instance</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-is-collection"></a><h3>dbus_g_type_is_collection ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_is_collection (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Tests if a given GType is a collection.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a GType to test</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>true if the given GType is a collection</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-is-map"></a><h3>dbus_g_type_is_map ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_is_map (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Tests if a given GType is a map,
i.e. it was created with <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()"><code class="function">dbus_g_type_get_map()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a GType to test</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>true if the given GType is a map</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-is-struct"></a><h3>dbus_g_type_is_struct ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_is_struct (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Tests if a given GType is a struct,
i.e. it was created with <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()"><code class="function">dbus_g_type_get_struct()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a GType to test</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>true if the given GType is a struct</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-collection-specialization"></a><h3>dbus_g_type_get_collection_specialization ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_collection_specialization
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Return the type of each element in collections of type <em class="parameter"><code>gtype</code></em>.
It is an error to call this function on a non-collection type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a collection <span class="type">GType</span>, as created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-collection" title="dbus_g_type_get_collection ()"><code class="function">dbus_g_type_get_collection()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the element type for a given collection GType.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-map-key-specialization"></a><h3>dbus_g_type_get_map_key_specialization ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_map_key_specialization
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Return the type of the keys in maps of type <em class="parameter"><code>gtype</code></em>.
It is an error to call this function on a non-map type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a map <span class="type">GType</span>, as created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()"><code class="function">dbus_g_type_get_map()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the key type for a given map <span class="type">GType</span>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-map-value-specialization"></a><h3>dbus_g_type_get_map_value_specialization ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_map_value_specialization
(<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Return the type of the values in maps of type <em class="parameter"><code>gtype</code></em>.
It is an error to call this function on a non-map type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a map GType, as created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()"><code class="function">dbus_g_type_get_map()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the value type for a given map GType.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-struct-member-type"></a><h3>dbus_g_type_get_struct_member_type ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_type_get_struct_member_type (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>);</pre>
<p>
Get the type of a member of a specialized struct.
It is an error to call this function on a non-struct type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a struct GType, as created with <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()"><code class="function">dbus_g_type_get_struct()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>the index of a struct member</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the type for a given member of a struct <span class="type">GType</span>,
or <code class="literal">G_TYPE_INVALID</code> if <em class="parameter"><code>member</code></em> >= <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct-size" title="dbus_g_type_get_struct_size ()"><code class="function">dbus_g_type_get_struct_size()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-get-struct-size"></a><h3>dbus_g_type_get_struct_size ()</h3>
<pre class="programlisting"><span class="returnvalue">guint</span> dbus_g_type_get_struct_size (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Get the number of members in a specialized struct.
It is an error to call this function on a non-struct type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a struct GType, as created with <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()"><code class="function">dbus_g_type_get_struct()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of members in a given struct <span class="type">GType</span>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-construct"></a><h3>dbus_g_type_specialized_construct ()</h3>
<pre class="programlisting"><span class="returnvalue">gpointer</span> dbus_g_type_specialized_construct (<em class="parameter"><code><span class="type">GType</span> gtype</code></em>);</pre>
<p>
Create an instance of a given specialized type.
The structure created and returned will depend on the container type of the
GType. E.g. If the given type was created by
dbus_g_type_get_collection("GArray", G_TYPE_INT),
then this will return a GArray with element_size of sizeof(int)
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gtype</code></em> :</span></p></td>
<td>a specialized <span class="type">GType</span>, as created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-collection" title="dbus_g_type_get_collection ()"><code class="function">dbus_g_type_get_collection()</code></a>,
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()"><code class="function">dbus_g_type_get_map()</code></a> or <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()"><code class="function">dbus_g_type_get_struct()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to a newly constructed instance of the given type.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-init-append"></a><h3>dbus_g_type_specialized_init_append ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_specialized_init_append (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);</pre>
<p>
Create a new context for adding elements to a collection or key/value pairs
to a map. You generally don't need or want to use this..
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing an instance of specialized type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>a <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> in which to return a new appending context.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-collection-append"></a><h3>dbus_g_type_specialized_collection_append ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_specialized_collection_append
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *elt</code></em>);</pre>
<p>
Appends a given element to the end of a collection.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>a context created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
for a <span class="type">GValue</span> containing a collection</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>elt</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing an element to append to the collection</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-collection-end-append"></a><h3>dbus_g_type_specialized_collection_end_append ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_specialized_collection_end_append
(<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>);</pre>
<p>
Finish appending elements to a given collection
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>a context created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
for a <span class="type">GValue</span> containing a collection</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-map-append"></a><h3>dbus_g_type_specialized_map_append ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_specialized_map_append (<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedAppendContext" title="DBusGTypeSpecializedAppendContext"><span class="type">DBusGTypeSpecializedAppendContext</span></a> *ctx</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *key</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *val</code></em>);</pre>
<p>
Inserts the given key/value pair into the map instance.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ctx</code></em> :</span></p></td>
<td>a context created by <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-specialized-init-append" title="dbus_g_type_specialized_init_append ()"><code class="function">dbus_g_type_specialized_init_append()</code></a>
for a <span class="type">GValue</span> containing a map</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key</code></em> :</span></p></td>
<td>a GValue containing a key, whose contents will be stolen by <em class="parameter"><code>ctx</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a GValue containing a value, whose contents will be stolen by <em class="parameter"><code>ctx</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-collection-get-fixed"></a><h3>dbus_g_type_collection_get_fixed ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_collection_get_fixed (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> *data_ret</code></em>,
<em class="parameter"><code><span class="type">guint</span> *len_ret</code></em>);</pre>
<p>
Calling this function is likely to be a bad idea. Consider using
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-collection-value-iterate" title="dbus_g_type_collection_value_iterate ()"><code class="function">dbus_g_type_collection_value_iterate()</code></a> instead.
</p>
<p>
On success, <em class="parameter"><code>data_ret</code></em> is a pointer to the underlying data in a collection
of fixed-length fundamental types. Knowledge of the underlying data model
of the collection is needed in order to use <em class="parameter"><code>data_ret</code></em> correctly.
</p>
<p>
It is an error to call this function on a specialized type that is not a
collection, or on a collection that does not have a <em class="parameter"><code>fixed_accessor</code></em> in its
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable"><span class="type">DBusGTypeSpecializedCollectionVtable</span></a>.
</p>
<p>
Specialized <span class="type">GArray</span>s are the only types provided by dbus-glib that
can be used with this function; user-defined types might also work.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a GValue containing a boxed specialized collection
that has a <em class="parameter"><code>fixed_accessor</code></em> in its vtable</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data_ret</code></em> :</span></p></td>
<td>used to return a pointer to the fixed data, which must not be
modified (for instance, for a <span class="type">GArray</span> of <span class="type">gint</span>, this would point
to an array of <span class="type">gint</span>)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len_ret</code></em> :</span></p></td>
<td>used to return the length (counting collection elements, not
bytes: in a <span class="type">GArray</span> containing one <span class="type">gint</span>, this would be 1)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> on success</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-collection-value-iterate"></a><h3>dbus_g_type_collection_value_iterate ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_collection_value_iterate
(<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionIterator" title="DBusGTypeSpecializedCollectionIterator ()"><span class="type">DBusGTypeSpecializedCollectionIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
Calls the given function for each element of the collection.
The function is passed a <span class="type">GValue</span> containing the element and the given
<em class="parameter"><code>user_data</code></em> parameter. The collection may not be modified while iterating over
it.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> holding a collection type.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iterator</code></em> :</span></p></td>
<td>a function to call for each element</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data to pass to the <em class="parameter"><code>iterator</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-map-value-iterate"></a><h3>dbus_g_type_map_value_iterate ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_map_value_iterate (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapIterator" title="DBusGTypeSpecializedMapIterator ()"><span class="type">DBusGTypeSpecializedMapIterator</span></a> iterator</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
Calls the given function for each key/value pair of the map.
The function is passed two GValues containing the key/value pair and the given
<em class="parameter"><code>user_data</code></em> parameter. The map may not be modified while iterating over
it.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> holding a specialized map</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iterator</code></em> :</span></p></td>
<td>a function to call for each element</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data to pass to the <em class="parameter"><code>iterator</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-struct-get-member"></a><h3>dbus_g_type_struct_get_member ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_struct_get_member (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *dest</code></em>);</pre>
<p>
Fetches a given member of a given struct instance. <em class="parameter"><code>dest</code></em> must be initialised
was the correct type for that member, e.g. as returned by
<em class="parameter"><code>dbus_g_type_get_struct_member_type</code></em>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing a struct instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>the index of a given member</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td>an initialised <span class="type">GValue</span> in which to return the struct member</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> if successful</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-struct-set-member"></a><h3>dbus_g_type_struct_set_member ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_struct_set_member (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>const <span class="type">GValue</span> *src</code></em>);</pre>
<p>
Sets a given member of a struct to a new value. The type of <em class="parameter"><code>src</code></em> must match
the existing type of <em class="parameter"><code>member</code></em> member of the struct.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing a struct instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>the index of a given member</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td>an <span class="type">GValue</span> containing the new value for that struct member</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> if successful</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-struct-get"></a><h3>dbus_g_type_struct_get ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_struct_get (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>
Collects the selected values of this struct into the return locations
provided.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing a struct instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>struct member to get</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>location in which to return the value of this member,
followed optionally by more member/return locations pairs, followed by
by <code class="literal">G_MAXUINT</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">FALSE</code> on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-struct-set"></a><h3>dbus_g_type_struct_set ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> dbus_g_type_struct_set (<em class="parameter"><code><span class="type">GValue</span> *value</code></em>,
<em class="parameter"><code><span class="type">guint</span> member</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>
Sets the selected members of the struct in <em class="parameter"><code>value</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <span class="type">GValue</span> containing a struct instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>member</code></em> :</span></p></td>
<td>struct member to set</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>value for the first member, followed optionally by
more member/value pairs, followed by <code class="literal">G_MAXUINT</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">FALSE</code> on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-specialized-init"></a><h3>dbus_g_type_specialized_init ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_specialized_init (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Initialize dbus-glib specialized <span class="type">GType</span>s.
</p>
<p>
In older versions of dbus-glib, it was necessary to do this before
instantiating or registering any specialized type. It is now done
automatically whenever necessary.
</p>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-register-collection"></a><h3>dbus_g_type_register_collection ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_register_collection (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable"><span class="type">DBusGTypeSpecializedCollectionVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);</pre>
<p>
Defines a new collection container.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>The name of a new collection container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vtable</code></em> :</span></p></td>
<td>the vtable defining the new container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
<td>As yet unused.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-register-map"></a><h3>dbus_g_type_register_map ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_register_map (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapVtable" title="DBusGTypeSpecializedMapVtable"><span class="type">DBusGTypeSpecializedMapVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);</pre>
<p>
Defines a new map container.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>The name of a new map container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vtable</code></em> :</span></p></td>
<td>the vtable defining the new container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
<td>As yet unused.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-map-peek-vtable"></a><h3>dbus_g_type_map_peek_vtable ()</h3>
<pre class="programlisting">const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedMapVtable" title="DBusGTypeSpecializedMapVtable"><span class="returnvalue">DBusGTypeSpecializedMapVtable</span></a> * dbus_g_type_map_peek_vtable
(<em class="parameter"><code><span class="type">GType</span> map_type</code></em>);</pre>
<p>
Peek the vtable for a given map specialization
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>map_type</code></em> :</span></p></td>
<td>a gtype of a map specialization</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the vtable</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-collection-peek-vtable"></a><h3>dbus_g_type_collection_peek_vtable ()</h3>
<pre class="programlisting">const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedCollectionVtable" title="DBusGTypeSpecializedCollectionVtable"><span class="returnvalue">DBusGTypeSpecializedCollectionVtable</span></a> * dbus_g_type_collection_peek_vtable
(<em class="parameter"><code><span class="type">GType</span> collection_type</code></em>);</pre>
<p>
Peek the vtable for a given collection specialization
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>collection_type</code></em> :</span></p></td>
<td>a gtype of a collection specialization</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the vtable</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-struct-peek-vtable"></a><h3>dbus_g_type_struct_peek_vtable ()</h3>
<pre class="programlisting">const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructVtable" title="DBusGTypeSpecializedStructVtable"><span class="returnvalue">DBusGTypeSpecializedStructVtable</span></a> * dbus_g_type_struct_peek_vtable
(<em class="parameter"><code><span class="type">GType</span> struct_type</code></em>);</pre>
<p>
Peek the vtable for a given struct specialization
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>struct_type</code></em> :</span></p></td>
<td>a gtype of a struct specialization</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the vtable</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-type-register-struct"></a><h3>dbus_g_type_register_struct ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_type_register_struct (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGTypeSpecializedStructVtable" title="DBusGTypeSpecializedStructVtable"><span class="type">DBusGTypeSpecializedStructVtable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">guint</span> flags</code></em>);</pre>
<p>
Defines a new struct container.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>The name of a new struct container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vtable</code></em> :</span></p></td>
<td>the vtable defining the new container</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
<td>As yet unused.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-value-build-g-variant"></a><h3>dbus_g_value_build_g_variant ()</h3>
<pre class="programlisting"><span class="returnvalue">GVariant</span> * dbus_g_value_build_g_variant (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
Recurses <em class="parameter"><code>value</code></em> and converts its contents to a <span class="type">GVariant</span>.
</p>
<p>
The value must either be a simple value (integer, string, boolean,
object path etc.) or a specialized container registered with
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-collection" title="dbus_g_type_get_collection ()"><code class="function">dbus_g_type_get_collection()</code></a>, <a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-map" title="dbus_g_type_get_map ()"><code class="function">dbus_g_type_get_map()</code></a> or
<a class="link" href="dbus-glib-Specializable-GType-System.html#dbus-g-type-get-struct" title="dbus_g_type_get_struct ()"><code class="function">dbus_g_type_get_struct()</code></a>. Providing any other type is a programming error
(including as a child type).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a simple or specialized <span class="type">GValue</span> to convert to a <span class="type">GVariant</span>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <span class="type">GVariant</span> containing <em class="parameter"><code>value</code></em> with a floating reference</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-value-parse-g-variant"></a><h3>dbus_g_value_parse_g_variant ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_value_parse_g_variant (<em class="parameter"><code><span class="type">GVariant</span> *variant</code></em>,
<em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
Deserialize <em class="parameter"><code>variant</code></em> and put an equivalent dbus-glib data structure in
<em class="parameter"><code>value</code></em>.
</p>
<p>
It is an error if <em class="parameter"><code>variant</code></em> contains any <span class="type">GVariant</span> extensions not supported
by dbus-glib, including handles (file descriptor passing) and 'maybe' types.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>variant</code></em> :</span></p></td>
<td>a <span class="type">GVariant</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a zero-filled <span class="type">GValue</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-BOOLEAN-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_BOOLEAN_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_BOOLEAN_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_BOOLEAN))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">gboolean</span>
(corresponding to the D-Bus signature "ab").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-UCHAR-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_UCHAR_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_UCHAR_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_UCHAR))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">guchar</span>
(corresponding to the D-Bus signature "ay").
</p>
<p>
Note that this is not the same thing as a <span class="type">GByteArray</span>! dbus-glib does not
know about the <span class="type">GByteArray</span> type.
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-UINT-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_UINT_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_UINT_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_UINT))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">guint</span>
(corresponding to the D-Bus signature "au").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-INT-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_INT_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_INT_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_INT))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">gint</span>
(corresponding to the D-Bus signature "ai").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-UINT64-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_UINT64_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_UINT64_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_UINT64))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">guint64</span>
(corresponding to the D-Bus signature "at").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-INT64-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_INT64_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_INT64_ARRAY (dbus_g_type_get_collection ("GArray", G_TYPE_INT64))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GArray</span> of <span class="type">gint64</span>
(corresponding to the D-Bus signature "ax").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-OBJECT-ARRAY:CAPS"></a><h3>DBUS_TYPE_G_OBJECT_ARRAY</h3>
<pre class="programlisting">#define DBUS_TYPE_G_OBJECT_ARRAY (dbus_g_type_get_collection ("GPtrArray", G_TYPE_OBJECT))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GPtrArray</span> of <span class="type">GObject</span>.
</p>
<p>
Use this type with caution: it can sometimes be used as a representation
of arrays whose D-Bus signature is "ao" (transferred as an array of object
paths), but the conventional type for such arrays is
<code class="literal">(dbus_g_type_get_collection ("GPtrArray",
DBUS_TYPE_G_OBJECT_PATH))</code>.
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-STRING-STRING-HASHTABLE:CAPS"></a><h3>DBUS_TYPE_G_STRING_STRING_HASHTABLE</h3>
<pre class="programlisting">#define DBUS_TYPE_G_STRING_STRING_HASHTABLE (dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING))
</pre>
<p>
Expands to a function call returning the <span class="type">GType</span> of a <span class="type">GHashTable</span> where the
keys are strings and the values are also strings (corresponding to the
D-Bus signature "a{ss}").
</p>
</div>
<hr>
<div class="refsect2">
<a name="DBusGSignature"></a><h3>DBusGSignature</h3>
<pre class="programlisting">typedef gchar DBusGSignature;
</pre>
<p>
A typedef for a string used to represent D-Bus signatures.
Its GType is <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-SIGNATURE:CAPS" title="DBUS_TYPE_G_SIGNATURE"><code class="literal">DBUS_TYPE_G_SIGNATURE</code></a>, derived from <code class="literal">G_TYPE_BOXED</code>.
</p>
<p>
Prior to version 0.FIXME this was used as the type name of
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-SIGNATURE:CAPS" title="DBUS_TYPE_G_SIGNATURE"><code class="literal">DBUS_TYPE_G_SIGNATURE</code></a>, but did not actually exist as a typedef.
</p>
<p class="since">Since 0.FIXME</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-SIGNATURE:CAPS"></a><h3>DBUS_TYPE_G_SIGNATURE</h3>
<pre class="programlisting">#define DBUS_TYPE_G_SIGNATURE (dbus_g_signature_get_g_type ())
</pre>
<p>
The <span class="type">GType</span> of a <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGSignature" title="DBusGSignature"><span class="type">DBusGSignature</span></a>, which is a boxed type containing a
D-Bus signature as a zero-terminated string. Signatures can be
copied with <code class="function">g_strdup()</code> and freed with <code class="function">g_free()</code>, just like <code class="literal">G_TYPE_STRING</code>,
but have a distinct boxed type to allow them to be distinguished when
stored in a <span class="type">GValue</span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a type derived from <code class="literal">G_TYPE_BOXED</code>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="DBusGObjectPath"></a><h3>DBusGObjectPath</h3>
<pre class="programlisting">typedef gchar DBusGObjectPath;
</pre>
<p>
A typedef for a string used to represent D-Bus object paths.
Its GType is <a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-OBJECT-PATH:CAPS" title="DBUS_TYPE_G_OBJECT_PATH"><code class="literal">DBUS_TYPE_G_OBJECT_PATH</code></a>, derived from <code class="literal">G_TYPE_BOXED</code>.
</p>
<p>
Prior to version 0.FIXME this was used as the type name of
<a class="link" href="dbus-glib-Specializable-GType-System.html#DBUS-TYPE-G-OBJECT-PATH:CAPS" title="DBUS_TYPE_G_OBJECT_PATH"><code class="literal">DBUS_TYPE_G_OBJECT_PATH</code></a>, but did not actually exist as a typedef.
</p>
<p class="since">Since 0.FIXME</p>
</div>
<hr>
<div class="refsect2">
<a name="DBUS-TYPE-G-OBJECT-PATH:CAPS"></a><h3>DBUS_TYPE_G_OBJECT_PATH</h3>
<pre class="programlisting">#define DBUS_TYPE_G_OBJECT_PATH (dbus_g_object_path_get_g_type ())
</pre>
<p>
The <span class="type">GType</span> of a <a class="link" href="dbus-glib-Specializable-GType-System.html#DBusGObjectPath" title="DBusGObjectPath"><span class="type">DBusGObjectPath</span></a>, which is a boxed type containing a
D-Bus object path as a zero-terminated string. Object paths can be
copied with <code class="function">g_strdup()</code> and freed with <code class="function">g_free()</code>, just like <code class="literal">G_TYPE_STRING</code>,
but have a distinct boxed type to allow them to be distinguished when
stored in a <span class="type">GValue</span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a type derived from <code class="literal">G_TYPE_BOXED</code>
</td>
</tr></tbody>
</table></div>
</div>
</div>
</div>
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