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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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                  <a href="#libgwymodule-gwymodule-file.description" class="shortcut">Description</a>
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<h2><span class="refentrytitle"><a name="libgwymodule-gwymodule-file.top_of_page"></a>gwymodule-file</span></h2>
<p>gwymodule-file — File loading and saving modules</p>
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<div class="refsynopsisdiv">
<a name="libgwymodule-gwymodule-file.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;libgwymodule/gwymodule.h&gt;

#define             <a class="link" href="libgwymodule-gwymodule-file.html#GWY-FILE-DETECT-BUFFER-SIZE:CAPS" title="GWY_FILE_DETECT_BUFFER_SIZE">GWY_FILE_DETECT_BUFFER_SIZE</a>
#define             <a class="link" href="libgwymodule-gwymodule-file.html#GWY-MODULE-FILE-ERROR:CAPS" title="GWY_MODULE_FILE_ERROR">GWY_MODULE_FILE_ERROR</a>
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                (<a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectFunc" title="GwyFileDetectFunc ()">*GwyFileDetectFunc</a>)                (<em class="parameter"><code>const <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectInfo" title="GwyFileDetectInfo"><span class="type">GwyFileDetectInfo</span></a> *fileinfo</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
                    <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectInfo" title="GwyFileDetectInfo">GwyFileDetectInfo</a>;
<a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      (<a class="link" href="libgwymodule-gwymodule-file.html#GwyFileLoadFunc" title="GwyFileLoadFunc ()">*GwyFileLoadFunc</a>)                  (<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>,
                                                         <em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (<a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()">*GwyFileSaveFunc</a>)                  (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>,
                                                         <em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
enum                <a class="link" href="libgwymodule-gwymodule-file.html#GwyModuleFileError" title="enum GwyModuleFileError">GwyModuleFileError</a>;
const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-detect" title="gwy_file_detect ()">gwy_file_detect</a>                     (<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="type">GwyFileOperationType</span></a> operations</code></em>);
const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-detect-with-score" title="gwy_file_detect_with_score ()">gwy_file_detect_with_score</a>          (<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="type">GwyFileOperationType</span></a> operations</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *score</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-exists" title="gwy_file_func_exists ()">gwy_file_func_exists</a>                (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-foreach" title="gwy_file_func_foreach ()">gwy_file_func_foreach</a>               (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GFunc"><span class="type">GFunc</span></a> function</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);
const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-get-description" title="gwy_file_func_get_description ()">gwy_file_func_get_description</a>       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-get-is-detectable" title="gwy_file_func_get_is_detectable ()">gwy_file_func_get_is_detectable</a>     (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
<a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-get-operations" title="gwy_file_func_get_operations ()">gwy_file_func_get_operations</a>       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-register" title="gwy_file_func_register ()">gwy_file_func_register</a>              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *description</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectFunc" title="GwyFileDetectFunc ()"><span class="type">GwyFileDetectFunc</span></a> detect</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileLoadFunc" title="GwyFileLoadFunc ()"><span class="type">GwyFileLoadFunc</span></a> load</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()"><span class="type">GwyFileSaveFunc</span></a> save</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()"><span class="type">GwyFileSaveFunc</span></a> export_</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-run-detect" title="gwy_file_func_run_detect ()">gwy_file_func_run_detect</a>            (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-run-export" title="gwy_file_func_run_export ()">gwy_file_func_run_export</a>            (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-run-load" title="gwy_file_func_run_load ()">gwy_file_func_run_load</a>              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-run-save" title="gwy_file_func_run_save ()">gwy_file_func_run_save</a>              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-set-is-detectable" title="gwy_file_func_set_is_detectable ()">gwy_file_func_set_is_detectable</a>     (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> is_detectable</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-get-data-info" title="gwy_file_get_data_info ()">gwy_file_get_data_info</a>              (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **filename_sys</code></em>);
<a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-load" title="gwy_file_load ()">gwy_file_load</a>                       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-load-with-func" title="gwy_file_load_with_func ()">gwy_file_load_with_func</a>             (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-save" title="gwy_file_save ()">gwy_file_save</a>                      (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-save-with-func" title="gwy_file_save_with_func ()">gwy_file_save_with_func</a>            (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a>              <a class="link" href="libgwymodule-gwymodule-file.html#gwy-module-file-error-quark" title="gwy_module_file_error_quark ()">gwy_module_file_error_quark</a>         (<em class="parameter"><code><span class="type">void</span></code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-file.description"></a><h2>Description</h2>
<p>
File modules implement file loading, saving and file type detection
functions.  Not all fuctions has to be implemented, a file module can be
import-only or export-only.  If it does not implement file type detection,
files of this type can be read/written only on user's explicite request.
</p>
<p>
For file module writers, the only useful function here is the registration
function <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-register" title="gwy_file_func_register ()"><code class="function">gwy_file_func_register()</code></a> and the signatures of particular file
operations: <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectFunc" title="GwyFileDetectFunc ()"><span class="type">GwyFileDetectFunc</span></a>, <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileLoadFunc" title="GwyFileLoadFunc ()"><span class="type">GwyFileLoadFunc</span></a>, and <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()"><span class="type">GwyFileSaveFunc</span></a>.
</p>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-file.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GWY-FILE-DETECT-BUFFER-SIZE:CAPS"></a><h3>GWY_FILE_DETECT_BUFFER_SIZE</h3>
<pre class="programlisting">#define GWY_FILE_DETECT_BUFFER_SIZE 4096U
</pre>
<p>
The size of <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectInfo" title="GwyFileDetectInfo"><span class="type">GwyFileDetectInfo</span></a> buffer for initial part of file.  It should
be enough for any normal kind of magic header test.
</p>
</div>
<hr>
<div class="refsect2">
<a name="GWY-MODULE-FILE-ERROR:CAPS"></a><h3>GWY_MODULE_FILE_ERROR</h3>
<pre class="programlisting">#define GWY_MODULE_FILE_ERROR gwy_module_file_error_quark()
</pre>
<p>
Error domain for file module operations.  Errors in this domain will be from
the <a class="link" href="libgwymodule-gwymodule-file.html#GwyModuleFileError" title="enum GwyModuleFileError"><span class="type">GwyModuleFileError</span></a> enumeration. See <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> for information on
error domains.
</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyFileDetectFunc"></a><h3>GwyFileDetectFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                (*GwyFileDetectFunc)                (<em class="parameter"><code>const <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectInfo" title="GwyFileDetectInfo"><span class="type">GwyFileDetectInfo</span></a> *fileinfo</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
The type of file type detection function.
</p>
<p>
When called with <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> <em class="parameter"><code>only_name</code></em> it should not try to access the file.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>fileinfo</code></em> :</span></p></td>
<td>Information about file to detect the filetype of,
see <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectInfo" title="GwyFileDetectInfo"><span class="type">GwyFileDetectInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>only_name</code></em> :</span></p></td>
<td>Whether the type should be guessed only from file name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>Function name from as registered with <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-register" title="gwy_file_func_register ()"><code class="function">gwy_file_func_register()</code></a>
(single-function modules can safely ignore this argument).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>An integer likehood score (see <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-run-detect" title="gwy_file_func_run_detect ()"><code class="function">gwy_file_func_run_detect()</code></a> for
description).</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyFileDetectInfo"></a><h3>GwyFileDetectInfo</h3>
<pre class="programlisting">typedef struct {
    const gchar *name;
    const gchar *name_lowercase;
    gsize file_size;
    guint buffer_len;
    const guchar *head;
    const guchar *tail;
} GwyFileDetectInfo;
</pre>
<p>
File detection data for <a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectFunc" title="GwyFileDetectFunc ()"><span class="type">GwyFileDetectFunc</span></a>.
</p>
<p>
It contains the common information file type detection routines need to
obtain.  It is shared between file detection functions and they must not
modify its contents.  Some fields are set only when the detection routines
are to check the file contents, these are marked `Undefined if <em class="parameter"><code>only_name</code></em>'.
</p>
<p>
The <em class="parameter"><code>head</code></em> and <em class="parameter"><code>tail</code></em> buffers are always nul-terminated and thus safely usable
with string functions.  When file is shorter than
<em class="parameter"><code>GWY_FILE_DETECT_BUFFER_SIZE</code></em> bytes, <code class="literal">'\0'</code> is appended
to the end (therefore <em class="parameter"><code>buffer_len</code></em> = <em class="parameter"><code>file_size</code></em> + 1), otherwise the last
byte is overwritten with <code class="literal">'\0'</code>.  In either case the
last byte of <em class="parameter"><code>head</code></em> and <em class="parameter"><code>tail</code></em> cannot be assumed to be identical as in
the file (or being a part of the file at all).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GwyFileDetectInfo.name"></a>name</code></em>;</span></p></td>
<td>File name, in GLib filename encoding.</td>
</tr>
<tr>
<td><p><span class="term">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GwyFileDetectInfo.name-lowercase"></a>name_lowercase</code></em>;</span></p></td>
<td>File name in lowercase (for eventual case-insensitive
name check).</td>
</tr>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> <em class="structfield"><code><a name="GwyFileDetectInfo.file-size"></a>file_size</code></em>;</span></p></td>
<td>File size in bytes.  Undefined if <em class="parameter"><code>only_name</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GwyFileDetectInfo.buffer-len"></a>buffer_len</code></em>;</span></p></td>
<td>The size of <em class="parameter"><code>head</code></em> and <em class="parameter"><code>tail</code></em> in bytes.  Normally it's
<em class="parameter"><code>GWY_FILE_DETECT_BUFFER_SIZE</code></em> except when file is shorter than
that.  Undefined if <em class="parameter"><code>only_name</code></em>.</td>
</tr>
<tr>
<td><p><span class="term">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *<em class="structfield"><code><a name="GwyFileDetectInfo.head"></a>head</code></em>;</span></p></td>
<td>Initial part of file.  Undefined if <em class="parameter"><code>only_name</code></em>.</td>
</tr>
<tr>
<td><p><span class="term">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *<em class="structfield"><code><a name="GwyFileDetectInfo.tail"></a>tail</code></em>;</span></p></td>
<td>Final part of file.  Undefined if <em class="parameter"><code>only_name</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyFileLoadFunc"></a><h3>GwyFileLoadFunc ()</h3>
<pre class="programlisting"><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      (*GwyFileLoadFunc)                  (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
The type of file loading function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to load data from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode, this is either <em class="parameter"><code>GWY_RUN_NONINTERACTIVE</code></em>
or <em class="parameter"><code>GWY_RUN_INTERACTIVE</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>Function name from as registered with <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-register" title="gwy_file_func_register ()"><code class="function">gwy_file_func_register()</code></a>
(single-function modules can safely ignore this argument).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A newly created data container, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyFileSaveFunc"></a><h3>GwyFileSaveFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (*GwyFileSaveFunc)                  (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
The type of file saving function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> to save.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to save <em class="parameter"><code>data</code></em> as.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode, this is either <em class="parameter"><code>GWY_RUN_NONINTERACTIVE</code></em>
or <em class="parameter"><code>GWY_RUN_INTERACTIVE</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>Function name from as registered with <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-register" title="gwy_file_func_register ()"><code class="function">gwy_file_func_register()</code></a>
(single-function modules can safely ignore this argument).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if file save succeeded, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyModuleFileError"></a><h3>enum GwyModuleFileError</h3>
<pre class="programlisting">typedef enum {
    GWY_MODULE_FILE_ERROR_CANCELLED,
    GWY_MODULE_FILE_ERROR_UNIMPLEMENTED,
    GWY_MODULE_FILE_ERROR_IO,
    GWY_MODULE_FILE_ERROR_DATA,
    GWY_MODULE_FILE_ERROR_INTERACTIVE,
    GWY_MODULE_FILE_ERROR_SPECIFIC
} GwyModuleFileError;
</pre>
<p>
Error codes returned by file module operations.
</p>
<p>
File module functions can return any of these codes, except
<em class="parameter"><code>GWY_MODULE_FILE_ERROR_UNIMPLEMENTED</code></em> which is normally only returned by
high-level functions <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-load" title="gwy_file_load ()"><code class="function">gwy_file_load()</code></a> and <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-save" title="gwy_file_save ()"><code class="function">gwy_file_save()</code></a>.  Module functions
can return it only when they are called with a wrong function name.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-CANCELLED:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_CANCELLED</code></span></p></td>
<td>Interactive operation was cancelled by
                                  user.
</td>
</tr>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-UNIMPLEMENTED:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_UNIMPLEMENTED</code></span></p></td>
<td>No module implements requested
                                      operation.
</td>
</tr>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-IO:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_IO</code></span></p></td>
<td>Input/output error occured.
</td>
</tr>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-DATA:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_DATA</code></span></p></td>
<td>Data is corrupted or in an unsupported format.
</td>
</tr>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-INTERACTIVE:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_INTERACTIVE</code></span></p></td>
<td>Operation requires user input, but
                                    it was run as GWY_RUN_NONINTERACTIVE.
</td>
</tr>
<tr>
<td><p><a name="GWY-MODULE-FILE-ERROR-SPECIFIC:CAPS"></a><span class="term"><code class="literal">GWY_MODULE_FILE_ERROR_SPECIFIC</code></span></p></td>
<td>Specific module errors that do not fall
                                 into any other category (such as the
                                 failure to initialize a library used to
                                 read the data).  Seldom used.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-detect"></a><h3>gwy_file_detect ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gwy_file_detect                     (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="type">GwyFileOperationType</span></a> operations</code></em>);</pre>
<p>
Detects the type of a file.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to detect type of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>only_name</code></em> :</span></p></td>
<td>Whether to use only file name for a guess, or try to actually
access the file.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>operations</code></em> :</span></p></td>
<td>The file operations the file type must support (it must
support all of them to be considered).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The type name (i.e., the same name as passed to
e.g. <code class="function">gwy_run_file_load_func()</code>) of most probable type of <em class="parameter"><code>filename</code></em>,
or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there's no probable one.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-detect-with-score"></a><h3>gwy_file_detect_with_score ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gwy_file_detect_with_score          (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="type">GwyFileOperationType</span></a> operations</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *score</code></em>);</pre>
<p>
Detects the type of a file and gives the score.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to detect type of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>only_name</code></em> :</span></p></td>
<td>Whether to use only file name for a guess, or try to actually</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>operations</code></em> :</span></p></td>
<td>The file operations the file type must support (it must</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>score</code></em> :</span></p></td>
<td>Location to store the maximum score (corresponding to the returned
type) to.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The type name (i.e., the same name as passed to
e.g. <code class="function">gwy_run_file_load_func()</code>) of most probable type of <em class="parameter"><code>filename</code></em>,
or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there's no probable one.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.1</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-exists"></a><h3>gwy_file_func_exists ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_func_exists                (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
Checks whether a file type function exists.
</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>File type function name.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if function <em class="parameter"><code>name</code></em> exists, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-foreach"></a><h3>gwy_file_func_foreach ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                gwy_file_func_foreach               (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GFunc"><span class="type">GFunc</span></a> function</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>
Calls a function for each file function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>function</code></em> :</span></p></td>
<td>Function to run for each file function.  It will get function
name (constant string owned by module system) as its first
argument, <em class="parameter"><code>user_data</code></em> as the second argument.</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>function</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-get-description"></a><h3>gwy_file_func_get_description ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gwy_file_func_get_description       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
Gets file function description.
</p>
<p>
That is, the <em class="parameter"><code>file_desc</code></em> field of <span class="type">GwyFileFuncInfo</span>.
</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>File type function name.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>File function description, as a string owned by module loader.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-get-is-detectable"></a><h3>gwy_file_func_get_is_detectable ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_func_get_is_detectable     (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
Returns if the file format is reasonably detectable.
</p>
<p>
This is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for all file types that define a detection method unless they
explicitly call <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-set-is-detectable" title="gwy_file_func_set_is_detectable ()"><code class="function">gwy_file_func_set_is_detectable()</code></a> to set the file format
non-detectable in spite of providing a detection method.
</p>
<p>
If files that can be actually loaded as a given type form a subset of files
that are detected as this format, which is normaly the case, it makes no
sense to let the user explicitly choose between these formats.  Hence,
detectable formats normally are not explicitly offered.
</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>File type function name.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>If the file format is detectable.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-get-operations"></a><h3>gwy_file_func_get_operations ()</h3>
<pre class="programlisting"><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> gwy_file_func_get_operations       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>
Returns operations supported by a file type function.
</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>File type function name.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The file operation bit mask, zero if <em class="parameter"><code>name</code></em> does not exist.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-register"></a><h3>gwy_file_func_register ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_func_register              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *description</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileDetectFunc" title="GwyFileDetectFunc ()"><span class="type">GwyFileDetectFunc</span></a> detect</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileLoadFunc" title="GwyFileLoadFunc ()"><span class="type">GwyFileLoadFunc</span></a> load</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()"><span class="type">GwyFileSaveFunc</span></a> save</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-file.html#GwyFileSaveFunc" title="GwyFileSaveFunc ()"><span class="type">GwyFileSaveFunc</span></a> export_</code></em>);</pre>
<p>
Registered a file function.
</p>
<p>
At least one of <em class="parameter"><code>load</code></em>, <em class="parameter"><code>save</code></em>, and <em class="parameter"><code>export_</code></em> must be non-<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  See
<a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="type">GwyFileOperationType</span></a> for differences between save and export.
</p>
<p>
Note: the string arguments are not copied as modules are not expected to
vanish.  If they are constructed (non-constant) strings, do not free them.
Should modules ever become unloadable they will get chance to clean-up.
</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>Name of function to register.  It should be a valid identifier and
if a module registers only one function, module and function names
should be the same.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>description</code></em> :</span></p></td>
<td>File type description (will be used in file type selectors).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detect</code></em> :</span></p></td>
<td>Detection function.  It may be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, files of such a type can
can be then loaded and saved only on explict user request.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>load</code></em> :</span></p></td>
<td>File load/import function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>save</code></em> :</span></p></td>
<td>File save function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>export_</code></em> :</span></p></td>
<td>File export function.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>Normally <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>; <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-run-detect"></a><h3>gwy_file_func_run_detect ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gwy_file_func_run_detect            (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> only_name</code></em>);</pre>
<p>
Runs a file type detection function identified by <em class="parameter"><code>name</code></em>.
</p>
<p>
Value of <em class="parameter"><code>only_name</code></em> should be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the file doesn't exist (is to be
written) so its contents can't be used for file type detection.
</p>
<p>
This is a low-level function, consider using <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-detect" title="gwy_file_detect ()"><code class="function">gwy_file_detect()</code></a> if you
simply want to detect a file type.
</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>A file type function name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to detect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>only_name</code></em> :</span></p></td>
<td>Whether to use only file name for a guess, or try to actually
access the file.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>An integer score expressing the likehood of the file being
loadable as this type. A basic scale is 20 for a good extension,
100 for good magic header, more for more thorough tests.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-run-export"></a><h3>gwy_file_func_run_export ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_func_run_export            (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Runs a file export function identified by <em class="parameter"><code>name</code></em>.
</p>
<p>
It guarantees the container lifetime spans through the actual file saving,
so the module function doesn't have to care about it.
</p>
<p>
This is a low-level function, consider using <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-save" title="gwy_file_save ()"><code class="function">gwy_file_save()</code></a> if you
simply want to save a file.
</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>A file save function name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> to save.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to save <em class="parameter"><code>data</code></em> as.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if file save succeeded, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-run-load"></a><h3>gwy_file_func_run_load ()</h3>
<pre class="programlisting"><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      gwy_file_func_run_load              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Runs a file load function identified by <em class="parameter"><code>name</code></em>.
</p>
<p>
This is a low-level function, consider using <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-load" title="gwy_file_load ()"><code class="function">gwy_file_load()</code></a> if you
simply want to load a file.
</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>A file load function name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to load data from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A new <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> with data from <em class="parameter"><code>filename</code></em>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-run-save"></a><h3>gwy_file_func_run_save ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_func_run_save              (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Runs a file save function identified by <em class="parameter"><code>name</code></em>.
</p>
<p>
It guarantees the container lifetime spans through the actual file saving,
so the module function doesn't have to care about it.
</p>
<p>
This is a low-level function, consider using <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-save" title="gwy_file_save ()"><code class="function">gwy_file_save()</code></a> if you
simply want to save a file.
</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>A file save function name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> to save.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to save <em class="parameter"><code>data</code></em> as.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if file save succeeded, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-func-set-is-detectable"></a><h3>gwy_file_func_set_is_detectable ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                gwy_file_func_set_is_detectable     (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> is_detectable</code></em>);</pre>
<p>
Sets the detectability status of a file format.
</p>
<p>
See <a class="link" href="libgwymodule-gwymodule-file.html#gwy-file-func-get-is-detectable" title="gwy_file_func_get_is_detectable ()"><code class="function">gwy_file_func_get_is_detectable()</code></a> for details.  The only rare case when
it makes sense to call this function is when a detection function is
provided for some reason, however, this function is not really able to
detect the format.  For instance, the fallback detection method of the
Gwyddion rawfile module.
</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>File type function name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>is_detectable</code></em> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to define format as detectable, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> as
non-detectable.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-get-data-info"></a><h3>gwy_file_get_data_info ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_file_get_data_info              (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **filename_sys</code></em>);</pre>
<p>
Gets file information about a data.
</p>
<p>
The information is set on two ocasions: file load and successful file save.
File export does not set it.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>Location to store file type (that is file function name) of <em class="parameter"><code>data</code></em>,
or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  The returned string is owned by module system.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename_sys</code></em> :</span></p></td>
<td>Location to store file name of <em class="parameter"><code>data</code></em> (in GLib encoding), or
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  The returned string is owned by module system and is
valid only until the container is destroyed or saved again.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if information about <em class="parameter"><code>data</code></em> was found and <em class="parameter"><code>name</code></em> and/or
<em class="parameter"><code>filename</code></em> was filled.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-load"></a><h3>gwy_file_load ()</h3>
<pre class="programlisting"><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      gwy_file_load                       (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Loads a data file, autodetecting its type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to load data from, in GLib encoding.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A new <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> with data from <em class="parameter"><code>filename</code></em>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.25</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-load-with-func"></a><h3>gwy_file_load_with_func ()</h3>
<pre class="programlisting"><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="returnvalue">GwyContainer</span></a> *      gwy_file_load_with_func             (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-save"></a><h3>gwy_file_save ()</h3>
<pre class="programlisting"><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> gwy_file_save                      (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Saves a data file, deciding to save as what type from the file name.
</p>
<p>
It tries to find a module implementing <a class="link" href="libgwymodule-gwymoduleenums.html#GWY-FILE-OPERATION-SAVE:CAPS"><code class="literal">GWY_FILE_OPERATION_SAVE</code></a> first, when
it does not succeed, it falls back to <a class="link" href="libgwymodule-gwymoduleenums.html#GWY-FILE-OPERATION-EXPORT:CAPS"><code class="literal">GWY_FILE_OPERATION_EXPORT</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>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> to save.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to save the data as, in GLib encoding.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The save operation that was actually realized on success, zero
on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-file-save-with-func"></a><h3>gwy_file_save_with_func ()</h3>
<pre class="programlisting"><a class="link" href="libgwymodule-gwymoduleenums.html#GwyFileOperationType" title="enum GwyFileOperationType"><span class="returnvalue">GwyFileOperationType</span></a> gwy_file_save_with_func            (<em class="parameter"><code><a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> *data</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>,
                                                         <em class="parameter"><code><a class="link" href="libgwymodule-gwymoduleenums.html#GwyRunType" title="enum GwyRunType"><span class="type">GwyRunType</span></a> mode</code></em>,
                                                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **name</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Saves a data file, deciding to save as what type from the file name.
</p>
<p>
It tries to find a module implementing <a class="link" href="libgwymodule-gwymoduleenums.html#GWY-FILE-OPERATION-SAVE:CAPS"><code class="literal">GWY_FILE_OPERATION_SAVE</code></a> first, when
it does not succeed, it falls back to <a class="link" href="libgwymodule-gwymoduleenums.html#GWY-FILE-OPERATION-EXPORT:CAPS"><code class="literal">GWY_FILE_OPERATION_EXPORT</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>data</code></em> :</span></p></td>
<td>A <a href="./../libgwyddion/libgwyddion/GwyContainer.html"><span class="type">GwyContainer</span></a> to save.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>A file name to save the data as, in GLib encoding.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>Run mode.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>Location to store the name of file load function used to save the
file, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  If an error occurs outside the module, e.g. failure
to recognise the file type, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is stored to <em class="parameter"><code>name</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>Return location for a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The save operation that was actually realized on success, zero
on failure.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.25</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-module-file-error-quark"></a><h3>gwy_module_file_error_quark ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a>              gwy_module_file_error_quark         (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Returns error domain for file module functions.
</p>
<p>
See and use <a class="link" href="libgwymodule-gwymodule-file.html#GWY-MODULE-FILE-ERROR:CAPS" title="GWY_MODULE_FILE_ERROR"><code class="literal">GWY_MODULE_FILE_ERROR</code></a>.
</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>The error domain.</td>
</tr></tbody>
</table></div>
</div>
</div>
</div>
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