/usr/include/gdkmm-2.4/gdkmm/display.h is in libgtkmm-2.4-dev 1:2.24.4-2.
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// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GDKMM_DISPLAY_H
#define _GDKMM_DISPLAY_H
#include <glibmm.h>
/* $Id: display.hg,v 1.22 2006/04/12 11:11:24 murrayc Exp $ */
/* display.h
*
* Copyright (C) 1998-2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gdkmm/screen.h>
#include <gdkmm/device.h>
#include <gdkmm/types.h> //For ModifierType
#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GdkDisplay GdkDisplay;
typedef struct _GdkDisplayClass GdkDisplayClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
namespace Gdk
{ class Display_Class; } // namespace Gdk
namespace Gdk
{
class Drawable;
/** Gdk::Display object's purpose is two fold:
* To grab/ungrab keyboard focus and mouse pointer
* To manage and provide information about the Gdk::Screen(s) available for this Gdk::Display
*
* Gdk::Display objects are the GDK representation of the X Display which can be described as a workstation consisting
* of a keyboard a pointing device (such as a mouse) and one or more screens. It is used to open and keep track of
* various Gdk::Screen objects currently instantiated by the application. It is also used to grab and release the keyboard
* and the mouse pointer.
*/
class Display : public Glib::Object
{
#ifndef DOXYGEN_SHOULD_SKIP_THIS
public:
typedef Display CppObjectType;
typedef Display_Class CppClassType;
typedef GdkDisplay BaseObjectType;
typedef GdkDisplayClass BaseClassType;
private: friend class Display_Class;
static CppClassType display_class_;
private:
// noncopyable
Display(const Display&);
Display& operator=(const Display&);
protected:
explicit Display(const Glib::ConstructParams& construct_params);
explicit Display(GdkDisplay* castitem);
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
public:
virtual ~Display();
#ifndef DOXYGEN_SHOULD_SKIP_THIS
static GType get_type() G_GNUC_CONST;
static GType get_base_type() G_GNUC_CONST;
#endif
///Provides access to the underlying C GObject.
GdkDisplay* gobj() { return reinterpret_cast<GdkDisplay*>(gobject_); }
///Provides access to the underlying C GObject.
const GdkDisplay* gobj() const { return reinterpret_cast<GdkDisplay*>(gobject_); }
///Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
GdkDisplay* gobj_copy();
private:
protected:
Display();
public:
/** Opens a display.
*
* @newin{2,2}
* @param display_name The name of the display to open.
* @return A Gdk::Display, or <tt>0</tt> if the display
* could not be opened.
*/
static Glib::RefPtr<Display> open(const Glib::ustring& display_name);
/** Gets the name of the display.
*
* @newin{2,2}
* @return A string representing the display name. This string is owned
* by GDK and should not be modified or freed.
*/
Glib::ustring get_name() const;
/** Gets the number of screen managed by the @a display.
*
* @newin{2,2}
* @return Number of screens.
*/
int get_n_screens() const;
/** Returns a screen object for one of the screens of the display.
*
* @newin{2,2}
* @param screen_num The screen number.
* @return The Gdk::Screen object.
*/
Glib::RefPtr<Screen> get_screen(int screen_num);
/** Returns a screen object for one of the screens of the display.
*
* @newin{2,2}
* @param screen_num The screen number.
* @return The Gdk::Screen object.
*/
Glib::RefPtr<const Screen> get_screen(int screen_num) const;
/** Get the default Gdk::Screen for @a display.
*
* @newin{2,2}
* @return The default Gdk::Screen object for @a display.
*/
Glib::RefPtr<Screen> get_default_screen();
/** Get the default Gdk::Screen for @a display.
*
* @newin{2,2}
* @return The default Gdk::Screen object for @a display.
*/
Glib::RefPtr<const Screen> get_default_screen() const;
/** Release any pointer grab.
*
* @newin{2,2}
* @param timestamp A timestap (e.g. GDK_CURRENT_TIME).
*/
void pointer_ungrab(guint32 timestamp);
/** Release any keyboard grab
*
* @newin{2,2}
* @param timestamp A timestap (e.g Gdk::CURRENT_TIME).
*/
void keyboard_ungrab(guint32 timestamp);
/** Test if the pointer is grabbed.
*
* @newin{2,2}
* @return <tt>true</tt> if an active X pointer grab is in effect.
*/
bool pointer_is_grabbed() const;
/** Emits a short beep on @a display
*
* @newin{2,2}
*/
void beep();
/** Flushes any requests queued for the windowing system and waits until all
* requests have been handled. This is often used for making sure that the
* display is synchronized with the current state of the program. Calling
* sync() before gdk_error_trap_pop() makes sure that any errors
* generated from earlier requests are handled before the error trap is
* removed.
*
* This is most useful for X11. On windowing systems where requests are
* handled synchronously, this function will do nothing.
*
* @newin{2,2}
*/
void sync();
/** Closes the connection to the windowing system for the given display,
* and cleans up associated resources.
*
* @newin{2,2}
*/
void close();
/** Returns the list of available input devices attached to @a display.
* The list is statically allocated and should not be freed.
*
* @newin{2,2}
* @return A list of Gdk::Device.
*/
Glib::ListHandle< Glib::RefPtr<Device> > list_devices();
/** Returns the list of available input devices attached to @a display.
* The list is statically allocated and should not be freed.
*
* @newin{2,2}
* @return A list of Gdk::Device.
*/
Glib::ListHandle< Glib::RefPtr<const Device> > list_devices() const;
//TODO: Use C++ Gdk::Event:
//TODO: get_event() might remove the event - if so, then there should not be a const version:
/** Gets the next Gdk::Event to be processed for @a display, fetching events from the
* windowing system if necessary.
*
* @newin{2,2}
* @return The next Gdk::Event to be processed, or <tt>0</tt> if no events
* are pending. The returned Gdk::Event should be freed with Gdk::Event::free().
*/
GdkEvent* get_event();
/** Gets the next Gdk::Event to be processed for @a display, fetching events from the
* windowing system if necessary.
*
* @newin{2,2}
* @return The next Gdk::Event to be processed, or <tt>0</tt> if no events
* are pending. The returned Gdk::Event should be freed with Gdk::Event::free().
*/
const GdkEvent* get_event() const;
/** Gets a copy of the first Gdk::Event in the @a display's event queue, without
* removing the event from the queue. (Note that this function will
* not get more events from the windowing system. It only checks the events
* that have already been moved to the GDK event queue.)
*
* @newin{2,2}
* @return A copy of the first Gdk::Event on the event queue, or <tt>0</tt>
* if no events are in the queue. The returned Gdk::Event should be freed with
* Gdk::Event::free().
*/
GdkEvent* peek_event();
/** Gets a copy of the first Gdk::Event in the @a display's event queue, without
* removing the event from the queue. (Note that this function will
* not get more events from the windowing system. It only checks the events
* that have already been moved to the GDK event queue.)
*
* @newin{2,2}
* @return A copy of the first Gdk::Event on the event queue, or <tt>0</tt>
* if no events are in the queue. The returned Gdk::Event should be freed with
* Gdk::Event::free().
*/
GdkEvent* peek_event() const;
/** Appends a copy of the given event onto the front of the event
* queue for @a display.
*
* @newin{2,2}
* @param event A Gdk::Event.
*/
void put_event(GdkEvent* event);
//TODO: Use a slot here, though this is probably never used anyway:
//Find out whether we can use a string representation for the atom - look for examples of this function's use.
/** Adds a filter to be called when X ClientMessage events are received.
* See Gdk::Window::add_filter() if you are interested in filtering other
* types of events.
*
* @newin{2,2}
* @param message_type The type of ClientMessage events to receive.
* This will be checked against the @a message_type field
* of the XClientMessage event struct.
* @param func The function to call to process the event.
* @param data User data to pass to @a func.
*/
void add_client_message_filter(Glib::ustring& message_type, GdkFilterFunc func, gpointer data);
/** Sets the double click time (two clicks within this time interval
* count as a double click and result in a Gdk::2BUTTON_PRESS event).
* Applications should <em>not</em> set this, it is a global
* user-configured setting.
*
* @newin{2,2}
* @param msec Double click time in milliseconds (thousandths of a second).
*/
void set_double_click_time(guint msec);
/** Sets the double click distance (two clicks within this distance
* count as a double click and result in a Gdk::2BUTTON_PRESS event).
* See also set_double_click_time().
* Applications should <em>not</em> set this, it is a global
* user-configured setting.
*
* @newin{2,4}
* @param distance Distance in pixels.
*/
void set_double_click_distance(guint distance);
/** Gets the default Gdk::Display. This is a convenience
* function for
* <tt>gdk_display_manager_get_default_display (manager_get())</tt>.
*
* @newin{2,2}
* @return A Gdk::Display, or <tt>0</tt> if there is no default
* display.
*/
static Glib::RefPtr<Display> get_default();
/** Returns the core pointer device for the given display
*
* @newin{2,2}
* @return The core pointer device; this is owned by the
* display and should not be freed.
*/
Glib::RefPtr<Device> get_core_pointer();
/** Returns the core pointer device for the given display
*
* @newin{2,2}
* @return The core pointer device; this is owned by the
* display and should not be freed.
*/
Glib::RefPtr<const Device> get_core_pointer() const;
/** Gets the current location of the pointer and the current modifier
* mask for a given display.
*
* @param screen location to store the screen that the cursor is on.
* @param x location to store root window X coordinate of pointer.
* @param y location to store root window Y coordinate of pointer.
* @param mask location to store current modifier mask.
*
**/
void get_pointer(Glib::RefPtr<Screen>& screen, int& x, int& y, ModifierType& mask);
// In fact, any one of these gdk_display_get_pointer() args can be NULL, but we don't need so many overloads.
/**
* Gets the current location of the pointer and the current modifier
* mask for a given display.
*
* @param x location to store root window X coordinate of pointer.
* @param y location to store root window Y coordinate of pointer.
* @param mask location to store current modifier mask.
*
**/
void get_pointer(int& x, int& y, ModifierType& mask);
/** Obtains the window underneath the mouse pointer, returning the location
* of the pointer in that window in @a win_x, @a win_y for @a screen. Returns <tt>0</tt>
* if the window under the mouse pointer is not known to GDK (for example,
* belongs to another application).
*
* @newin{2,2}
* @param win_x Return location for x coordinate of the pointer location relative
* to the window origin, or <tt>0</tt>.
* @param win_y Return location for y coordinate of the pointer location relative
* & to the window origin, or <tt>0</tt>.
* @return The window under the mouse pointer, or <tt>0</tt>.
*/
Glib::RefPtr<Window> get_window_at_pointer(int& win_x, int& win_y);
/** Obtains the window underneath the mouse pointer, returning the location
* of the pointer in that window in @a win_x, @a win_y for @a screen. Returns <tt>0</tt>
* if the window under the mouse pointer is not known to GDK (for example,
* belongs to another application).
*
* @newin{2,2}
* @param win_x Return location for x coordinate of the pointer location relative
* to the window origin, or <tt>0</tt>.
* @param win_y Return location for y coordinate of the pointer location relative
* & to the window origin, or <tt>0</tt>.
* @return The window under the mouse pointer, or <tt>0</tt>.
*/
Glib::RefPtr<const Window> get_window_at_pointer(int& win_x, int& win_y) const;
/** Obtains the window underneath the mouse pointer. Returns a null RefPtr if the window
* under the mouse pointer is not known to GDK (for example, belongs to
* another application).
* @result The window underneath the mouse pointer.
*/
Glib::RefPtr<Window> get_window_at_pointer();
/** Obtains the window underneath the mouse pointer. Returns a null RefPtr if the window
* under the mouse pointer is not known to GDK (for example, belongs to
* another application).
* @result The window underneath the mouse pointer.
*/
Glib::RefPtr<const Window> get_window_at_pointer() const;
/** Warps the pointer of @a display to the point @a x, @a y on
* the screen @a screen, unless the pointer is confined
* to a window by a grab, in which case it will be moved
* as far as allowed by the grab. Warping the pointer
* creates events as if the user had moved the mouse
* instantaneously to the destination.
*
* Note that the pointer should normally be under the
* control of the user. This function was added to cover
* some rare use cases like keyboard navigation support
* for the color picker in the Gtk::ColorSelectionDialog.
*
* @newin{2,8}
* @param screen The screen of @a display to warp the pointer to.
* @param x The x coordinate of the destination.
* @param y The y coordinate of the destination.
*/
void warp_pointer(const Glib::RefPtr<Screen>& screen, int x, int y);
#ifndef GDKMM_DISABLE_DEPRECATED
/** This function allows for hooking into the operation
* of getting the current location of the pointer on a particular
* display. This is only useful for such low-level tools as an
* event recorder. Applications should never have any
* reason to use this facility.
*
* @newin{2,2}
* @param new_hooks A table of pointers to functions for getting
* quantities related to the current pointer position.
* @return The previous pointer hook table.
*/
GdkDisplayPointerHooks* set_pointer_hooks(const GdkDisplayPointerHooks* new_hooks);
#endif // GDKMM_DISABLE_DEPRECATED
#ifndef GDKMM_DISABLE_DEPRECATED
/** @deprecated This method has been removed in gtkmm-3.0 for lack of use cases.
*/
GdkDisplayPointerHooks* unset_pointer_hooks();
#endif // GDKMM_DISABLE_DEPRECATED
/** Opens the default display specified by command line arguments or
* environment variables, sets it as the default display, and returns
* it. gdk_parse_args must have been called first. If the default
* display has previously been set, simply returns that. An internal
* function that should not be used by applications.
* @return The default display, if it could be opened,
* otherwise <tt>0</tt>.
*/
static Glib::RefPtr<Display> open_default_libgtk_only();
#ifdef G_OS_WIN32
#ifndef GDKMM_DISABLE_DEPRECATED
/** Finds out the DND protocol supported by a window.
*
* @newin{2,2}
* @deprecated Use the version that takes a GdkNativeWindow.
* @param xid The X id of the destination window.
* @param protocol Location where the supported DND protocol is returned.
* @return The X id of the window where the drop should happen. This
* may be @a xid or the X id of a proxy window, or None if @a xid doesn't
* support Drag and Drop.
*
* On Windows, GdkNativeWindow is not the same as guint32, so we keep the
* guint32 variant for ABI compatibility. On Linux, it is the same, and they
* can't be overloaded therefore. But the ABI stays the same anyway.
*/
guint32 get_drag_protocol(guint32 xid, GdkDragProtocol& protocol);
#endif // GDKMM_DISABLE_DEPRECATED
#endif
/** Finds out the DND protocol supported by a window.
*
* @newin{2,2}
* @param xid The windowing system id of the destination window.
* @param protocol Location where the supported DND protocol is returned.
* @return The windowing system id of the window where the drop should happen. This
* may be @a xid or the id of a proxy window, or zero if @a xid doesn't
* support Drag and Drop.
*/
GdkNativeWindow get_drag_protocol(GdkNativeWindow xid, GdkDragProtocol& protocol);
/** Returns the Gdk::Keymap attached to @a display.
*
* @newin{2,2}
* @return The Gdk::Keymap attached to @a display.
*/
GdkKeymap* get_keymap();
/** Returns the Gdk::Keymap attached to @a display.
*
* @newin{2,2}
* @return The Gdk::Keymap attached to @a display.
*/
const GdkKeymap* get_keymap() const;
bool set_selection_owner(const Glib::RefPtr<Window>& owner, Glib::ustring& selection, guint32 time_, bool send_event);
Glib::RefPtr<Window> get_selection_owner(const Glib::ustring& selection);
#ifdef G_OS_WIN32
/** Send a response to SelectionRequest event.
*
* @newin{2,2}
* @param requestor Window to which to deliver response.
* @param selection Selection that was requested.
* @param target Target that was selected.
* @param property Property in which the selection owner stored the data,
* or "None" to indicate that the request was rejected.
* @param time_ Timestamp.
*
* On Windows, GdkNativeWindow is not the same as guint32, so we keep the
* guint32 variant for ABI compatibility. On Linux, it is the same, and they
* can't be overloaded therefore. But the ABI stays the same anyway.
*/
void selection_send_notify(guint32 requestor, Glib::ustring& selection, Glib::ustring& target, Glib::ustring& property, guint32 time_);
#endif
/** Send a response to SelectionRequest event.
*
* @newin{2,2}
* @param requestor Window to which to deliver response.
* @param selection Selection that was requested.
* @param target Target that was selected.
* @param property Property in which the selection owner stored the data,
* or "None" to indicate that the request was rejected.
* @param time_ Timestamp.
*/
void selection_send_notify(GdkNativeWindow requestor, Glib::ustring& selection, Glib::ustring& target, Glib::ustring& property, guint32 time_);
/** Looks up the Gdk::Pixmap that wraps the given native pixmap handle.
*
* For example in the X backend, a native pixmap handle is an Xlib
* <type>XID</type>.
*
* @newin{2,2}
* @param anid A native pixmap handle.
* @return The Gdk::Pixmap wrapper for the native pixmap,
* or <tt>0</tt> if there is none.
*/
Glib::RefPtr<Pixmap> lookup_pixmap(NativeWindow anid);
/** Looks up the Gdk::Pixmap that wraps the given native pixmap handle.
*
* For example in the X backend, a native pixmap handle is an Xlib
* <type>XID</type>.
*
* @newin{2,2}
* @param anid A native pixmap handle.
* @return The Gdk::Pixmap wrapper for the native pixmap,
* or <tt>0</tt> if there is none.
*/
Glib::RefPtr<const Pixmap> lookup_pixmap(NativeWindow anid) const;
/** Flushes any requests queued for the windowing system; this happens automatically
* when the main loop blocks waiting for new events, but if your application
* is drawing without returning control to the main loop, you may need
* to call this function explicitely. A common case where this function
* needs to be called is when an application is executing drawing commands
* from a thread other than the thread where the main loop is running.
*
* This is most useful for X11. On windowing systems where requests are
* handled synchronously, this function will do nothing.
*
* @newin{2,4}
*/
void flush();
/** Returns <tt>true</tt> if cursors can use an 8bit alpha channel
* on @a display. Otherwise, cursors are restricted to bilevel
* alpha (i.e. a mask).
*
* @newin{2,4}
* @return Whether cursors can have alpha channels.
*/
bool supports_cursor_alpha() const;
/** Returns <tt>true</tt> if multicolored cursors are supported
* on @a display. Otherwise, cursors have only a forground
* and a background color.
*
* @newin{2,4}
* @return Whether cursors can have multiple colors.
*/
bool supports_cursor_color() const;
/** Returns the default size to use for cursors on @a display.
*
* @newin{2,4}
* @return The default cursor size.
*/
guint get_default_cursor_size() const;
/** Gets the maximal size to use for cursors on @a display.
*
* @newin{2,4}
* @param width The return location for the maximal cursor width.
* @param height The return location for the maximal cursor height.
*/
void get_maximal_cursor_size(guint& width, guint& height);
/** Returns the default group leader window for all toplevel windows
* on @a display. This window is implicitly created by GDK.
* See Gdk::Window::set_group().
*
* @newin{2,4}
* @return The default group leader window for @a display.
*/
Glib::RefPtr<Window> get_default_group();
/** Returns the default group leader window for all toplevel windows
* on @a display. This window is implicitly created by GDK.
* See Gdk::Window::set_group().
*
* @newin{2,4}
* @return The default group leader window for @a display.
*/
Glib::RefPtr<const Window> get_default_group() const;
//TODO: wrap the vfuncs, though they are not very useful because people will not derive from this class? murrayc.
/** Returns whether Gdk::EventOwnerChange events will be
* sent when the owner of a selection changes.
*
* @newin{2,6}
* @return Whether Gdk::EventOwnerChange events will
* be sent.
*/
bool supports_selection_notification() const;
/** Request Gdk::EventOwnerChange events for ownership changes
* of the selection named by the given atom.
*
* @newin{2,6}
* @param selection The Gdk::Atom naming the selection for which
* ownership change notification is requested.
* @return Whether Gdk::EventOwnerChange events will
* be sent.
*/
bool request_selection_notification(const Glib::ustring& selection);
/** Returns whether the speicifed display supports clipboard
* persistance; i.e.\ if it's possible to store the clipboard data after an
* application has quit. On X11 this checks if a clipboard daemon is
* running.
*
* @newin{2,6}
* @return <tt>true</tt> if the display supports clipboard persistance.
*/
bool supports_clipboard_persistence() const;
/** Issues a request to the clipboard manager to store the clipboard data,
* saving all available targets.
* On X11, this is a special program that works according to the freedesktop clipboard specification,
* available at http://www.freedesktop.org/Standards/clipboard-manager-spec.
* @newin{2,6}
*
* @param clipboard_window A Gdk::Window belonging to the clipboard owner.
* @param time_ A timestamp.
*/
void store_clipboard(const Glib::RefPtr<Gdk::Window>& clipboard_window, guint32 time_);
void store_clipboard(const Glib::RefPtr<Gdk::Window>& clipboard_window, guint32 time_, const Glib::StringArrayHandle& targets);
/** Returns <tt>true</tt> if Gdk::Window::shape_combine_mask() can
* be used to create shaped windows on @a display.
*
* @newin{2,10}
* @return <tt>true</tt> if shaped windows are supported.
*/
bool supports_shapes() const;
/** Returns <tt>true</tt> if Gdk::Window::input_shape_combine_mask() can
* be used to modify the input shape of windows on @a display.
*
* @newin{2,10}
* @return <tt>true</tt> if windows with modified input shape are supported.
*/
bool supports_input_shapes() const;
/** Returns <tt>true</tt> if Gdk::Window::set_composited() can be used
* to redirect drawing on the window using compositing.
*
* Currently this only works on X11 with XComposite and
* XDamage extensions available.
*
* @newin{2,12}
* @return <tt>true</tt> if windows may be composited.
*/
bool supports_composite() const;
/** The closed signal is emitted when the connection to the windowing
* system for this display is closed.
*
* @param is_error true if the display was closed due to an error
*
* @par Prototype:
* <tt>void on_my_%closed(bool is_error)</tt>
*/
Glib::SignalProxy1< void,bool > signal_closed();
public:
public:
//C++ methods used to invoke GTK+ virtual functions:
protected:
//GTK+ Virtual Functions (override these to change behaviour):
//Default Signal Handlers::
virtual void on_closed(bool is_error);
};
} /* namespace Gdk */
namespace Glib
{
/** A Glib::wrap() method for this object.
*
* @param object The C instance.
* @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
* @result A C++ instance that wraps this C instance.
*
* @relates Gdk::Display
*/
Glib::RefPtr<Gdk::Display> wrap(GdkDisplay* object, bool take_copy = false);
}
#endif /* _GDKMM_DISPLAY_H */
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