forked from AuroraMiddleware/gtk
706 lines
24 KiB
C
706 lines
24 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GDK_EVENTS_PRIVATE_H__
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#define __GDK_EVENTS_PRIVATE_H__
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#include <gdk/gdktypes.h>
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#include <gdk/gdkdnd.h>
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#include <gdk/gdkdevice.h>
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#include <gdk/gdkdevicetool.h>
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#define GDK_EVENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_EVENT, GdkEventClass))
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#define GDK_IS_EVENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_EVENT))
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#define GDK_EVENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_EVENT, GdkEventClass))
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typedef struct _GdkEventClass GdkEventClass;
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struct _GdkEventClass
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{
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GObjectClass object_class;
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};
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/**
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* GdkEventAny:
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* @type: the type of the event.
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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*
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* Contains the fields which are common to all event structs.
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* Any event pointer can safely be cast to a pointer to a #GdkEventAny to
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* access these fields.
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*/
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struct _GdkEventAny
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{
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GObject parent_instance;
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GdkEventType type;
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GdkWindow *window;
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guint16 flags;
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gint8 send_event;
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GdkDevice *device;
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GdkDevice *source_device;
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GdkDisplay *display;
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};
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/**
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* GdkEventExpose:
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* @type: the type of the event (%GDK_EXPOSE or %GDK_DAMAGE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @area: bounding box of @region.
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* @region: the region that needs to be redrawn.
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* @count: the number of contiguous %GDK_EXPOSE events following this one.
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* The only use for this is “exposure compression”, i.e. handling all
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* contiguous %GDK_EXPOSE events in one go, though GDK performs some
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* exposure compression so this is not normally needed.
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*
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* Generated when all or part of a window becomes visible and needs to be
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* redrawn.
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*/
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struct _GdkEventExpose
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{
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GdkEventAny any;
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GdkRectangle area;
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cairo_region_t *region;
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gint count; /* If non-zero, how many more events follow. */
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};
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/**
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* GdkEventMotion:
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* @type: the type of the event.
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @x: the x coordinate of the pointer relative to the window.
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* @y: the y coordinate of the pointer relative to the window.
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* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
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* the mouse.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @is_hint: set to 1 if this event is just a hint, see the
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* %GDK_POINTER_MOTION_HINT_MASK value of #GdkEventMask.
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* @device: the master device that the event originated from. Use
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* gdk_event_get_source_device() to get the slave device.
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* @x_root: the x coordinate of the pointer relative to the root of the
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* screen.
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* @y_root: the y coordinate of the pointer relative to the root of the
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* screen.
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*
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* Generated when the pointer moves.
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*/
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struct _GdkEventMotion
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{
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GdkEventAny any;
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guint32 time;
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gdouble x;
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gdouble y;
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gdouble *axes;
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guint state;
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gint16 is_hint;
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GdkDeviceTool *tool;
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gdouble x_root, y_root;
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GList *history;
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};
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/**
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* GdkEventButton:
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* @type: the type of the event (%GDK_BUTTON_PRESS or %GDK_BUTTON_RELEASE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @x: the x coordinate of the pointer relative to the window.
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* @y: the y coordinate of the pointer relative to the window.
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* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
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* the mouse.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @button: the button which was pressed or released, numbered from 1 to 5.
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* Normally button 1 is the left mouse button, 2 is the middle button,
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* and 3 is the right button. On 2-button mice, the middle button can
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* often be simulated by pressing both mouse buttons together.
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* @device: the master device that the event originated from. Use
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* gdk_event_get_source_device() to get the slave device.
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* @x_root: the x coordinate of the pointer relative to the root of the
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* screen.
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* @y_root: the y coordinate of the pointer relative to the root of the
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* screen.
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*
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* Used for button press and button release events. The
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* @type field will be one of %GDK_BUTTON_PRESS or %GDK_BUTTON_RELEASE,
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*/
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struct _GdkEventButton
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{
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GdkEventAny any;
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guint32 time;
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gdouble x;
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gdouble y;
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gdouble *axes;
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guint state;
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guint button;
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GdkDeviceTool *tool;
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gdouble x_root, y_root;
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};
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/**
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* GdkEventTouch:
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* @type: the type of the event (%GDK_TOUCH_BEGIN, %GDK_TOUCH_UPDATE,
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* %GDK_TOUCH_END, %GDK_TOUCH_CANCEL)
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* @window: the window which received the event
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @x: the x coordinate of the pointer relative to the window
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* @y: the y coordinate of the pointer relative to the window
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* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
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* the mouse
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType
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* @sequence: the event sequence that the event belongs to
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* @emulating_pointer: whether the event should be used for emulating
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* pointer event
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* @device: the master device that the event originated from. Use
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* gdk_event_get_source_device() to get the slave device.
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* @x_root: the x coordinate of the pointer relative to the root of the
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* screen
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* @y_root: the y coordinate of the pointer relative to the root of the
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* screen
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*
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* Used for touch events.
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* @type field will be one of %GDK_TOUCH_BEGIN, %GDK_TOUCH_UPDATE,
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* %GDK_TOUCH_END or %GDK_TOUCH_CANCEL.
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*
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* Touch events are grouped into sequences by means of the @sequence
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* field, which can also be obtained with gdk_event_get_event_sequence().
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* Each sequence begins with a %GDK_TOUCH_BEGIN event, followed by
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* any number of %GDK_TOUCH_UPDATE events, and ends with a %GDK_TOUCH_END
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* (or %GDK_TOUCH_CANCEL) event. With multitouch devices, there may be
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* several active sequences at the same time.
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*/
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struct _GdkEventTouch
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{
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GdkEventAny any;
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guint32 time;
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gdouble x;
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gdouble y;
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gdouble *axes;
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guint state;
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GdkEventSequence *sequence;
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gboolean emulating_pointer;
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gdouble x_root, y_root;
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};
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/**
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* GdkEventScroll:
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* @type: the type of the event (%GDK_SCROLL).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @x: the x coordinate of the pointer relative to the window.
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* @y: the y coordinate of the pointer relative to the window.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @direction: the direction to scroll to (one of %GDK_SCROLL_UP,
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* %GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT, %GDK_SCROLL_RIGHT or
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* %GDK_SCROLL_SMOOTH).
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* @device: the master device that the event originated from. Use
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* gdk_event_get_source_device() to get the slave device.
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* @x_root: the x coordinate of the pointer relative to the root of the
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* screen.
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* @y_root: the y coordinate of the pointer relative to the root of the
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* screen.
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* @delta_x: the x coordinate of the scroll delta
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* @delta_y: the y coordinate of the scroll delta
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*
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* Generated from button presses for the buttons 4 to 7. Wheel mice are
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* usually configured to generate button press events for buttons 4 and 5
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* when the wheel is turned.
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*
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* Some GDK backends can also generate “smooth” scroll events, which
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* can be recognized by the %GDK_SCROLL_SMOOTH scroll direction. For
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* these, the scroll deltas can be obtained with
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* gdk_event_get_scroll_deltas().
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*/
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struct _GdkEventScroll
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{
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GdkEventAny any;
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guint32 time;
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gdouble x;
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gdouble y;
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guint state;
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GdkScrollDirection direction;
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gdouble x_root, y_root;
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gdouble delta_x;
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gdouble delta_y;
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guint is_stop : 1;
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};
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/**
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* GdkEventKey:
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* @type: the type of the event (%GDK_KEY_PRESS or %GDK_KEY_RELEASE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @keyval: the key that was pressed or released. See the
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* `gdk/gdkkeysyms.h` header file for a
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* complete list of GDK key codes.
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* @length: the length of @string.
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* @string: a string containing an approximation of the text that
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* would result from this keypress. The only correct way to handle text
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* input of text is using input methods (see #GtkIMContext), so this
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* field is deprecated and should never be used.
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* (gdk_unicode_to_keyval() provides a non-deprecated way of getting
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* an approximate translation for a key.) The string is encoded in the
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* encoding of the current locale (Note: this for backwards compatibility:
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* strings in GTK+ and GDK are typically in UTF-8.) and NUL-terminated.
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* In some cases, the translation of the key code will be a single
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* NUL byte, in which case looking at @length is necessary to distinguish
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* it from the an empty translation.
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* @hardware_keycode: the raw code of the key that was pressed or released.
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* @group: the keyboard group.
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* @is_modifier: a flag that indicates if @hardware_keycode is mapped to a
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* modifier. Since 2.10
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*
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* Describes a key press or key release event.
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*/
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struct _GdkEventKey
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{
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GdkEventAny any;
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guint32 time;
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guint state;
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guint keyval;
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gint length;
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gchar *string;
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guint16 hardware_keycode;
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guint16 key_scancode;
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guint8 group;
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guint is_modifier : 1;
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};
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/**
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* GdkEventCrossing:
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* @type: the type of the event (%GDK_ENTER_NOTIFY or %GDK_LEAVE_NOTIFY).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @subwindow: the window that was entered or left.
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* @time: the time of the event in milliseconds.
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* @x: the x coordinate of the pointer relative to the window.
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* @y: the y coordinate of the pointer relative to the window.
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* @x_root: the x coordinate of the pointer relative to the root of the screen.
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* @y_root: the y coordinate of the pointer relative to the root of the screen.
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* @mode: the crossing mode (%GDK_CROSSING_NORMAL, %GDK_CROSSING_GRAB,
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* %GDK_CROSSING_UNGRAB, %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB or
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* %GDK_CROSSING_STATE_CHANGED). %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB,
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* and %GDK_CROSSING_STATE_CHANGED were added in 2.14 and are always synthesized,
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* never native.
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* @detail: the kind of crossing that happened (%GDK_NOTIFY_INFERIOR,
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* %GDK_NOTIFY_ANCESTOR, %GDK_NOTIFY_VIRTUAL, %GDK_NOTIFY_NONLINEAR or
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* %GDK_NOTIFY_NONLINEAR_VIRTUAL).
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* @focus: %TRUE if @window is the focus window or an inferior.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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*
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* Generated when the pointer enters or leaves a window.
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*/
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struct _GdkEventCrossing
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{
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GdkEventAny any;
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GdkWindow *subwindow;
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guint32 time;
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gdouble x;
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gdouble y;
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gdouble x_root;
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gdouble y_root;
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GdkCrossingMode mode;
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GdkNotifyType detail;
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gboolean focus;
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guint state;
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};
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/**
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* GdkEventFocus:
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* @type: the type of the event (%GDK_FOCUS_CHANGE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @in: %TRUE if the window has gained the keyboard focus, %FALSE if
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* it has lost the focus.
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*
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* Describes a change of keyboard focus.
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*/
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struct _GdkEventFocus
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{
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GdkEventAny any;
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gint16 in;
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};
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/**
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* GdkEventConfigure:
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* @type: the type of the event (%GDK_CONFIGURE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @x: the new x coordinate of the window, relative to its parent.
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* @y: the new y coordinate of the window, relative to its parent.
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* @width: the new width of the window.
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* @height: the new height of the window.
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*
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* Generated when a window size or position has changed.
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*/
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struct _GdkEventConfigure
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{
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GdkEventAny any;
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gint x, y;
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gint width;
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gint height;
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};
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/**
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* GdkEventProximity:
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* @type: the type of the event (%GDK_PROXIMITY_IN or %GDK_PROXIMITY_OUT).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @time: the time of the event in milliseconds.
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* @device: the master device that the event originated from. Use
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* gdk_event_get_source_device() to get the slave device.
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*
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* Proximity events are generated when using GDK’s wrapper for the
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* XInput extension. The XInput extension is an add-on for standard X
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* that allows you to use nonstandard devices such as graphics tablets.
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* A proximity event indicates that the stylus has moved in or out of
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* contact with the tablet, or perhaps that the user’s finger has moved
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* in or out of contact with a touch screen.
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*
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* This event type will be used pretty rarely. It only is important for
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* XInput aware programs that are drawing their own cursor.
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*/
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struct _GdkEventProximity
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{
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GdkEventAny any;
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guint32 time;
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};
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/**
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* GdkEventWindowState:
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* @type: the type of the event (%GDK_WINDOW_STATE).
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* @window: the window which received the event.
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* @send_event: %TRUE if the event was sent explicitly.
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* @changed_mask: mask specifying what flags have changed.
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* @new_window_state: the new window state, a combination of
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* #GdkWindowState bits.
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*
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* Generated when the state of a toplevel window changes.
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*/
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struct _GdkEventWindowState
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{
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GdkEventAny any;
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GdkWindowState changed_mask;
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GdkWindowState new_window_state;
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};
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/**
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* GdkEventGrabBroken:
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* @type: the type of the event (%GDK_GRAB_BROKEN)
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* @window: the window which received the event, i.e. the window
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* that previously owned the grab
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* @send_event: %TRUE if the event was sent explicitly.
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* @keyboard: %TRUE if a keyboard grab was broken, %FALSE if a pointer
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* grab was broken
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* @implicit: %TRUE if the broken grab was implicit
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* @grab_window: If this event is caused by another grab in the same
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* application, @grab_window contains the new grab window. Otherwise
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* @grab_window is %NULL.
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*
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* Generated when a pointer or keyboard grab is broken. On X11, this happens
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* when the grab window becomes unviewable (i.e. it or one of its ancestors
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* is unmapped), or if the same application grabs the pointer or keyboard
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* again. Note that implicit grabs (which are initiated by button presses)
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* can also cause #GdkEventGrabBroken events.
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*
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* Since: 2.8
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*/
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struct _GdkEventGrabBroken {
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GdkEventAny any;
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gboolean keyboard;
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gboolean implicit;
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GdkWindow *grab_window;
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};
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/**
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* GdkEventDND:
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* @type: the type of the event (%GDK_DRAG_ENTER, %GDK_DRAG_LEAVE,
|
||
* %GDK_DRAG_MOTION, %GDK_DRAG_STATUS, %GDK_DROP_START or
|
||
* %GDK_DROP_FINISHED).
|
||
* @window: the window which received the event.
|
||
* @send_event: %TRUE if the event was sent explicitly.
|
||
* @context: the #GdkDragContext for the current DND operation.
|
||
* @time: the time of the event in milliseconds.
|
||
* @x_root: the x coordinate of the pointer relative to the root of the
|
||
* screen, only set for %GDK_DRAG_MOTION and %GDK_DROP_START.
|
||
* @y_root: the y coordinate of the pointer relative to the root of the
|
||
* screen, only set for %GDK_DRAG_MOTION and %GDK_DROP_START.
|
||
*
|
||
* Generated during DND operations.
|
||
*/
|
||
struct _GdkEventDND {
|
||
GdkEventAny any;
|
||
GdkDragContext *context;
|
||
|
||
guint32 time;
|
||
gshort x_root, y_root;
|
||
};
|
||
|
||
/**
|
||
* GdkEventTouchpadSwipe:
|
||
* @type: the type of the event (%GDK_TOUCHPAD_SWIPE)
|
||
* @window: the window which received the event
|
||
* @send_event: %TRUE if the event was sent explicitly
|
||
* @phase: (type GdkTouchpadGesturePhase): the current phase of the gesture
|
||
* @n_fingers: The number of fingers triggering the swipe
|
||
* @time: the time of the event in milliseconds
|
||
* @x: The X coordinate of the pointer
|
||
* @y: The Y coordinate of the pointer
|
||
* @dx: Movement delta in the X axis of the swipe focal point
|
||
* @dy: Movement delta in the Y axis of the swipe focal point
|
||
* @x_root: The X coordinate of the pointer, relative to the
|
||
* root of the screen.
|
||
* @y_root: The Y coordinate of the pointer, relative to the
|
||
* root of the screen.
|
||
* @state: (type GdkModifierType): a bit-mask representing the state of
|
||
* the modifier keys (e.g. Control, Shift and Alt) and the pointer
|
||
* buttons. See #GdkModifierType.
|
||
*
|
||
* Generated during touchpad swipe gestures.
|
||
*/
|
||
struct _GdkEventTouchpadSwipe {
|
||
GdkEventAny any;
|
||
gint8 phase;
|
||
gint8 n_fingers;
|
||
guint32 time;
|
||
gdouble x;
|
||
gdouble y;
|
||
gdouble dx;
|
||
gdouble dy;
|
||
gdouble x_root, y_root;
|
||
guint state;
|
||
};
|
||
|
||
/**
|
||
* GdkEventTouchpadPinch:
|
||
* @type: the type of the event (%GDK_TOUCHPAD_PINCH)
|
||
* @window: the window which received the event
|
||
* @send_event: %TRUE if the event was sent explicitly
|
||
* @phase: (type GdkTouchpadGesturePhase): the current phase of the gesture
|
||
* @n_fingers: The number of fingers triggering the pinch
|
||
* @time: the time of the event in milliseconds
|
||
* @x: The X coordinate of the pointer
|
||
* @y: The Y coordinate of the pointer
|
||
* @dx: Movement delta in the X axis of the swipe focal point
|
||
* @dy: Movement delta in the Y axis of the swipe focal point
|
||
* @angle_delta: The angle change in radians, negative angles
|
||
* denote counter-clockwise movements
|
||
* @scale: The current scale, relative to that at the time of
|
||
* the corresponding %GDK_TOUCHPAD_GESTURE_PHASE_BEGIN event
|
||
* @x_root: The X coordinate of the pointer, relative to the
|
||
* root of the screen.
|
||
* @y_root: The Y coordinate of the pointer, relative to the
|
||
* root of the screen.
|
||
* @state: (type GdkModifierType): a bit-mask representing the state of
|
||
* the modifier keys (e.g. Control, Shift and Alt) and the pointer
|
||
* buttons. See #GdkModifierType.
|
||
*
|
||
* Generated during touchpad swipe gestures.
|
||
*/
|
||
struct _GdkEventTouchpadPinch {
|
||
GdkEventAny any;
|
||
gint8 phase;
|
||
gint8 n_fingers;
|
||
guint32 time;
|
||
gdouble x;
|
||
gdouble y;
|
||
gdouble dx;
|
||
gdouble dy;
|
||
gdouble angle_delta;
|
||
gdouble scale;
|
||
gdouble x_root, y_root;
|
||
guint state;
|
||
};
|
||
|
||
/**
|
||
* GdkEventPadButton:
|
||
* @type: the type of the event (%GDK_PAD_BUTTON_PRESS or %GDK_PAD_BUTTON_RELEASE).
|
||
* @window: the window which received the event.
|
||
* @send_event: %TRUE if the event was sent explicitly.
|
||
* @time: the time of the event in milliseconds.
|
||
* @group: the pad group the button belongs to. A %GDK_SOURCE_TABLET_PAD device
|
||
* may have one or more groups containing a set of buttons/rings/strips each.
|
||
* @button: The pad button that was pressed.
|
||
* @mode: The current mode of @group. Different groups in a %GDK_SOURCE_TABLET_PAD
|
||
* device may have different current modes.
|
||
*
|
||
* Generated during %GDK_SOURCE_TABLET_PAD button presses and releases.
|
||
*
|
||
* Since: 3.22
|
||
*/
|
||
struct _GdkEventPadButton {
|
||
GdkEventAny any;
|
||
guint32 time;
|
||
guint group;
|
||
guint button;
|
||
guint mode;
|
||
};
|
||
|
||
/**
|
||
* GdkEventPadAxis:
|
||
* @type: the type of the event (%GDK_PAD_RING or %GDK_PAD_STRIP).
|
||
* @window: the window which received the event.
|
||
* @send_event: %TRUE if the event was sent explicitly.
|
||
* @time: the time of the event in milliseconds.
|
||
* @group: the pad group the ring/strip belongs to. A %GDK_SOURCE_TABLET_PAD
|
||
* device may have one or more groups containing a set of buttons/rings/strips
|
||
* each.
|
||
* @index: number of strip/ring that was interacted. This number is 0-indexed.
|
||
* @mode: The current mode of @group. Different groups in a %GDK_SOURCE_TABLET_PAD
|
||
* device may have different current modes.
|
||
* @value: The current value for the given axis.
|
||
*
|
||
* Generated during %GDK_SOURCE_TABLET_PAD interaction with tactile sensors.
|
||
*
|
||
* Since: 3.22
|
||
*/
|
||
struct _GdkEventPadAxis {
|
||
GdkEventAny any;
|
||
guint32 time;
|
||
guint group;
|
||
guint index;
|
||
guint mode;
|
||
gdouble value;
|
||
};
|
||
|
||
/**
|
||
* GdkEventPadGroupMode:
|
||
* @type: the type of the event (%GDK_PAD_GROUP_MODE).
|
||
* @window: the window which received the event.
|
||
* @send_event: %TRUE if the event was sent explicitly.
|
||
* @time: the time of the event in milliseconds.
|
||
* @group: the pad group that is switching mode. A %GDK_SOURCE_TABLET_PAD
|
||
* device may have one or more groups containing a set of buttons/rings/strips
|
||
* each.
|
||
* @mode: The new mode of @group. Different groups in a %GDK_SOURCE_TABLET_PAD
|
||
* device may have different current modes.
|
||
*
|
||
* Generated during %GDK_SOURCE_TABLET_PAD mode switches in a group.
|
||
*
|
||
* Since: 3.22
|
||
*/
|
||
struct _GdkEventPadGroupMode {
|
||
GdkEventAny any;
|
||
guint32 time;
|
||
guint group;
|
||
guint mode;
|
||
};
|
||
|
||
/**
|
||
* GdkEvent:
|
||
* @type: the #GdkEventType
|
||
* @any: a #GdkEventAny
|
||
* @expose: a #GdkEventExpose
|
||
* @motion: a #GdkEventMotion
|
||
* @button: a #GdkEventButton
|
||
* @touch: a #GdkEventTouch
|
||
* @scroll: a #GdkEventScroll
|
||
* @key: a #GdkEventKey
|
||
* @crossing: a #GdkEventCrossing
|
||
* @focus_change: a #GdkEventFocus
|
||
* @configure: a #GdkEventConfigure
|
||
* @proximity: a #GdkEventProximity
|
||
* @dnd: a #GdkEventDND
|
||
* @window_state: a #GdkEventWindowState
|
||
* @grab_broken: a #GdkEventGrabBroken
|
||
* @touchpad_swipe: a #GdkEventTouchpadSwipe
|
||
* @touchpad_pinch: a #GdkEventTouchpadPinch
|
||
* @pad_button: a #GdkEventPadButton
|
||
* @pad_axis: a #GdkEventPadAxis
|
||
* @pad_group_mode: a #GdkEventPadGroupMode
|
||
*
|
||
* A #GdkEvent contains a union of all of the event types,
|
||
* and allows access to the data fields in a number of ways.
|
||
*
|
||
* The event type is always the first field in all of the event types, and
|
||
* can always be accessed with the following code, no matter what type of
|
||
* event it is:
|
||
* |[<!-- language="C" -->
|
||
* GdkEvent *event;
|
||
* GdkEventType type;
|
||
*
|
||
* type = event->type;
|
||
* ]|
|
||
*
|
||
* To access other fields of the event, the pointer to the event
|
||
* can be cast to the appropriate event type, or the union member
|
||
* name can be used. For example if the event type is %GDK_BUTTON_PRESS
|
||
* then the x coordinate of the button press can be accessed with:
|
||
* |[<!-- language="C" -->
|
||
* GdkEvent *event;
|
||
* gdouble x;
|
||
*
|
||
* x = ((GdkEventButton*)event)->x;
|
||
* ]|
|
||
* or:
|
||
* |[<!-- language="C" -->
|
||
* GdkEvent *event;
|
||
* gdouble x;
|
||
*
|
||
* x = event->button.x;
|
||
* ]|
|
||
*/
|
||
union _GdkEvent
|
||
{
|
||
GdkEventAny any;
|
||
GdkEventExpose expose;
|
||
GdkEventMotion motion;
|
||
GdkEventButton button;
|
||
GdkEventTouch touch;
|
||
GdkEventScroll scroll;
|
||
GdkEventKey key;
|
||
GdkEventCrossing crossing;
|
||
GdkEventFocus focus_change;
|
||
GdkEventConfigure configure;
|
||
GdkEventProximity proximity;
|
||
GdkEventDND dnd;
|
||
GdkEventWindowState window_state;
|
||
GdkEventGrabBroken grab_broken;
|
||
GdkEventTouchpadSwipe touchpad_swipe;
|
||
GdkEventTouchpadPinch touchpad_pinch;
|
||
GdkEventPadButton pad_button;
|
||
GdkEventPadAxis pad_axis;
|
||
GdkEventPadGroupMode pad_group_mode;
|
||
};
|
||
|
||
#endif /* __GDK_EVENTS_PRIVATE_H__ */
|