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docs: Move documentation to inline comments: event_structs

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All the GDK documentation is now moved to inline comments
This commit is contained in:
Javier Jardón 2010-11-15 20:41:44 +01:00
parent e2cfecf813
commit b204995c6d
4 changed files with 527 additions and 564 deletions
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1
docs/reference/gdk/tmpl/.gitignore vendored
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@ -4,6 +4,7 @@ cursors.sgml
dnd.sgml
drawing.sgml
events.sgml
event_structs.sgml
gdkapplaunchcontext.sgml
gdkdisplay.sgml
gdkdisplaymanager.sgml

548
docs/reference/gdk/tmpl/event_structs.sgml
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@ -1,548 +0,0 @@
<!-- ##### SECTION Title ##### -->
Event Structures
<!-- ##### SECTION Short_Description ##### -->
Data structures specific to each type of event
<!-- ##### SECTION Long_Description ##### -->
<para>
The event structs contain data specific to each type of event in GDK.
</para>
<note>
<para>
A common mistake is to forget to set the event mask of a widget so that the
required events are received. See gtk_widget_set_events().
</para>
</note>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### SECTION Image ##### -->
<!-- ##### UNION GdkEvent ##### -->
<para>
The #GdkEvent struct contains a union of all of the event structs,
and allows access to the data fields in a number of ways.
</para>
<para>
The event type is always the first field in all of the event structs, and
can always be accessed with the following code, no matter what type of event
it is:
<informalexample>
<programlisting>
GdkEvent *event;
GdkEventType type;
type = event->type;
</programlisting>
</informalexample>
</para>
<para>
To access other fields of the event structs, the pointer to the event can be
cast to the appropriate event struct pointer, 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:
<informalexample>
<programlisting>
GdkEvent *event;
gdouble x;
x = ((GdkEventButton*)event)->x;
</programlisting>
</informalexample>
or:
<informalexample>
<programlisting>
GdkEvent *event;
gdouble x;
x = event->button.x;
</programlisting>
</informalexample>
</para>
<!-- ##### STRUCT GdkEventAny ##### -->
<para>
Contains the fields which are common to all event structs.
Any event pointer can safely be cast to a pointer to a #GdkEventAny to access
these fields.
</para>
@type: the type of the event.
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
<!-- ##### STRUCT GdkEventKey ##### -->
<para>
Describes a key press or key release event.
</para>
@type: the type of the event (%GDK_KEY_PRESS or %GDK_KEY_RELEASE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@time: the time of the event in milliseconds.
@state: a bit-mask representing the state of the modifier keys (e.g. Control,
Shift and Alt) and the pointer buttons. See #GdkModifierType.
@keyval: the key that was pressed or released. See the
<filename>&lt;gdk/gdkkeysyms.h&gt;</filename>
header file for a complete list of GDK key codes.
@length: the length of @string.
@string: a string containing the an approximation of the text that
would result from this keypress. The only correct way to handle text
input of text is using input methods (see #GtkIMContext), so this
field is deprecated and should never be used.
(gdk_unicode_to_keyval() provides a non-deprecated way of getting
an approximate translation for a key.) The string is encoded in the encoding
of the current locale (Note: this for backwards compatibility:
strings in GTK+ and GDK are typically in UTF-8.) and NUL-terminated.
In some cases, the translation of the key code will be a single
NUL byte, in which case looking at @length is necessary to distinguish
it from the an empty translation.
@hardware_keycode: the raw code of the key that was pressed or released.
@group: the keyboard group.
@is_modifier: a flag that indicates if @hardware_keycode is mapped to a
modifier. Since 2.10
<!-- ##### STRUCT GdkEventButton ##### -->
<para>
Used for button press and button release events. The
<structfield>type</structfield> field will be one of %GDK_BUTTON_PRESS,
%GDK_2BUTTON_PRESS, %GDK_3BUTTON_PRESS, and %GDK_BUTTON_RELEASE.
</para>
<para>
Double and triple-clicks result in a sequence of events being received.
For double-clicks the order of events will be:
<orderedlist>
<listitem><para>%GDK_BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
<listitem><para>%GDK_BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_2BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
</orderedlist>
Note that the first click is received just like a normal
button press, while the second click results in a %GDK_2BUTTON_PRESS being
received just after the %GDK_BUTTON_PRESS.
</para>
<para>
Triple-clicks are very similar to double-clicks, except that %GDK_3BUTTON_PRESS
is inserted after the third click. The order of the events is:
<orderedlist>
<listitem><para>%GDK_BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
<listitem><para>%GDK_BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_2BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
<listitem><para>%GDK_BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_3BUTTON_PRESS</para></listitem>
<listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
</orderedlist>
</para>
<para>
For a double click to occur, the second button press must occur within 1/4 of
a second of the first. For a triple click to occur, the third button press
must also occur within 1/2 second of the first button press.
</para>
@type: the type of the event (%GDK_BUTTON_PRESS, %GDK_2BUTTON_PRESS,
%GDK_3BUTTON_PRESS or %GDK_BUTTON_RELEASE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@time: the time of the event in milliseconds.
@x: the x coordinate of the pointer relative to the window.
@y: the y coordinate of the pointer relative to the window.
@axes: @x, @y translated to the axes of @device, or %NULL if @device is
the mouse.
@state: a bit-mask representing the state of the modifier keys (e.g. Control,
Shift and Alt) and the pointer buttons. See #GdkModifierType.
@button: the button which was pressed or released, numbered from 1 to 5.
Normally button 1 is the left mouse button, 2 is the middle button,
and 3 is the right button. On 2-button mice, the middle button can often
be simulated by pressing both mouse buttons together.
@device: the device where the event originated.
@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.
<!-- ##### STRUCT GdkEventScroll ##### -->
<para>
Generated from button presses for the buttons 4 to 7. Wheel mice are
usually configured to generate button press events for buttons 4 and 5
when the wheel is turned.
</para>
@type: the type of the event (%GDK_SCROLL).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@time: the time of the event in milliseconds.
@x: the x coordinate of the pointer relative to the window.
@y: the y coordinate of the pointer relative to the window.
@state: a bit-mask representing the state of the modifier keys (e.g. Control,
Shift and Alt) and the pointer buttons. See #GdkModifierType.
@direction: the direction to scroll to (one of %GDK_SCROLL_UP,
%GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT and %GDK_SCROLL_RIGHT).
@device: the device where the event originated.
@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.
<!-- ##### STRUCT GdkEventMotion ##### -->
<para>
Generated when the pointer moves.
</para>
@type: the type of the event.
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@time: the time of the event in milliseconds.
@x: the x coordinate of the pointer relative to the window.
@y: the y coordinate of the pointer relative to the window.
@axes: @x, @y translated to the axes of @device, or %NULL if @device is
the mouse.
@state: a bit-mask representing the state of the modifier keys (e.g. Control,
Shift and Alt) and the pointer buttons. See #GdkModifierType.
@is_hint: set to 1 if this event is just a hint, see the %GDK_POINTER_MOTION_HINT_MASK
value of #GdkEventMask.
@device: the device where the event originated.
@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.
<!-- ##### STRUCT GdkEventExpose ##### -->
<para>
Generated when all or part of a window becomes visible and needs to be
redrawn.
</para>
@type: the type of the event (%GDK_EXPOSE or %GDK_DAMAGE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@area: bounding box of @region.
@region: the region that needs to be redrawn.
@count: the number of contiguous %GDK_EXPOSE events following this one.
The only use for this is "exposure compression", i.e. handling all contiguous
%GDK_EXPOSE events in one go, though GDK performs some exposure compression
so this is not normally needed.
<!-- ##### STRUCT GdkEventVisibility ##### -->
<para>
Generated when the window visibility status has changed.
</para>
@type: the type of the event (%GDK_VISIBILITY_NOTIFY).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@state: the new visibility state (%GDK_VISIBILITY_FULLY_OBSCURED,
%GDK_VISIBILITY_PARTIAL or %GDK_VISIBILITY_UNOBSCURED).
<!-- ##### STRUCT GdkEventCrossing ##### -->
<para>
Generated when the pointer enters or leaves a window.
</para>
@type: the type of the event (%GDK_ENTER_NOTIFY or %GDK_LEAVE_NOTIFY).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using
<function>XSendEvent</function>).
@subwindow: the window that was entered or left.
@time: the time of the event in milliseconds.
@x: the x coordinate of the pointer relative to the window.
@y: the y coordinate of the pointer relative to the window.
@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.
@mode: the crossing mode (%GDK_CROSSING_NORMAL, %GDK_CROSSING_GRAB,
%GDK_CROSSING_UNGRAB, %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB or
%GDK_CROSSING_STATE_CHANGED). %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB,
and %GDK_CROSSING_STATE_CHANGED were added in 2.14 and are always synthesized,
never native.
@detail: the kind of crossing that happened (%GDK_NOTIFY_INFERIOR,
%GDK_NOTIFY_ANCESTOR, %GDK_NOTIFY_VIRTUAL, %GDK_NOTIFY_NONLINEAR or
%GDK_NOTIFY_NONLINEAR_VIRTUAL).
@focus: %TRUE if @window is the focus window or an inferior.
@state: a bit-mask representing the state of the modifier keys (e.g. Control,
Shift and Alt) and the pointer buttons. See #GdkModifierType.
<!-- ##### STRUCT GdkEventFocus ##### -->
<para>
Describes a change of keyboard focus.
</para>
@type: the type of the event (%GDK_FOCUS_CHANGE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@in: %TRUE if the window has gained the keyboard focus, %FALSE if it has lost
the focus.
<!-- ##### STRUCT GdkEventConfigure ##### -->
<para>
Generated when a window size or position has changed.
</para>
@type: the type of the event (%GDK_CONFIGURE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@x: the new x coordinate of the window, relative to its parent.
@y: the new y coordinate of the window, relative to its parent.
@width: the new width of the window.
@height: the new height of the window.
<!-- ##### STRUCT GdkEventProperty ##### -->
<para>
Describes a property change on a window.
</para>
@type: the type of the event (%GDK_PROPERTY_NOTIFY).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@atom: the property that was changed.
@time: the time of the event in milliseconds.
@state: whether the property was changed (%GDK_PROPERTY_NEW_VALUE) or
deleted (%GDK_PROPERTY_DELETE).
<!-- ##### STRUCT GdkEventSelection ##### -->
<para>
Generated when a selection is requested or ownership of a selection
is taken over by another client application.
</para>
@type: the type of the event (%GDK_SELECTION_CLEAR, %GDK_SELECTION_NOTIFY or
%GDK_SELECTION_REQUEST).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@selection: the selection.
@target: the target to which the selection should be converted.
@property: the property in which to place the result of the conversion.
@time: the time of the event in milliseconds.
@requestor: the native window on which to place @property.
<!-- ##### TYPEDEF GdkNativeWindow ##### -->
<para>
Used to represent native windows (<type>Window</type>s for the X11 backend,
<type>HWND</type>s for Win32).
</para>
<!-- ##### STRUCT GdkEventDND ##### -->
<para>
Generated during DND operations.
</para>
@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 (e.g. using <function>XSendEvent</function>).
@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.
<!-- ##### STRUCT GdkEventProximity ##### -->
<para>
Proximity events are generated when using GDK's wrapper for the
XInput extension. The XInput extension is an add-on for standard X
that allows you to use nonstandard devices such as graphics tablets.
A proximity event indicates that the stylus has moved in or out of
contact with the tablet, or perhaps that the user's finger has moved
in or out of contact with a touch screen.
</para>
@type: the type of the event (%GDK_PROXIMITY_IN or %GDK_PROXIMITY_OUT).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@time: the time of the event in milliseconds.
@device: the device where the event originated.
<!-- ##### STRUCT GdkEventClient ##### -->
<para>
An event sent by another client application.
</para>
@type: the type of the event (%GDK_CLIENT_EVENT).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@message_type: the type of the message, which can be defined by the
application.
@data_format: the format of the data, given as the number of bits in each
data element, i.e. 8, 16, or 32. 8-bit data uses the b array of the data
union, 16-bit data uses the s array, and 32-bit data uses the l array.
<!-- ##### STRUCT GdkEventNoExpose ##### -->
<para>
Generated when the area of a #GdkDrawable being copied was completely available.
</para>
<para>
FIXME: add more here.
</para>
@type: the type of the event (%GDK_NO_EXPOSE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
<!-- ##### STRUCT GdkEventWindowState ##### -->
<para>
Generated when the state of a toplevel window changes.
</para>
@type: the type of the event (%GDK_WINDOW_STATE).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@changed_mask: mask specifying what flags have changed.
@new_window_state: the new window state, a combination of #GdkWindowState bits.
<!-- ##### STRUCT GdkEventSetting ##### -->
<para>
Generated when a setting is modified.
</para>
@type: the type of the event (%GDK_SETTING).
@window: the window which received the event.
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@action: what happened to the setting (%GDK_SETTING_ACTION_NEW,
%GDK_SETTING_ACTION_CHANGED or %GDK_SETTING_ACTION_DELETED).
@name: the name of the setting.
<!-- ##### STRUCT GdkEventOwnerChange ##### -->
<para>
Generated when the owner of a selection changes. On X11, this information is
only available if the X server supports the XFIXES extension.
</para>
@type: the type of the event (%GDK_OWNER_CHANGE).
@window: the window which received the event
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@owner: the new owner of the selection
@reason: the reason for the ownership change as a #GdkOwnerChange value
@selection: the atom identifying the selection
@time: the timestamp of the event
@selection_time: the time at which the selection ownership was taken over
@Since: 2.6
<!-- ##### STRUCT GdkEventGrabBroken ##### -->
<para>
Generated when a pointer or keyboard grab is broken. On X11, this happens
when the grab window becomes unviewable (i.e. it or one of its ancestors
is unmapped), or if the same application grabs the pointer or keyboard
again. Note that implicit grabs (which are initiated by button presses)
can also cause #GdkEventGrabBroken events.
</para>
@type: the type of the event (%GDK_GRAB_BROKEN)
@window: the window which received the event, i.e. the window
that previously owned the grab
@send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
@keyboard: %TRUE if a keyboard grab was broken, %FALSE if a pointer
grab was broken
@implicit: %TRUE if the broken grab was implicit
@grab_window: If this event is caused by another grab in the same
application, @grab_window contains the new grab window. Otherwise
@grab_window is %NULL.
@Since: 2.8
<!-- ##### ENUM GdkScrollDirection ##### -->
<para>
Specifies the direction for #GdkEventScroll.
</para>
@GDK_SCROLL_UP: the window is scrolled up.
@GDK_SCROLL_DOWN: the window is scrolled down.
@GDK_SCROLL_LEFT: the window is scrolled to the left.
@GDK_SCROLL_RIGHT: the window is scrolled to the right.
<!-- ##### ENUM GdkVisibilityState ##### -->
<para>
Specifies the visiblity status of a window for a #GdkEventVisibility.
</para>
@GDK_VISIBILITY_UNOBSCURED: the window is completely visible.
@GDK_VISIBILITY_PARTIAL: the window is partially visible.
@GDK_VISIBILITY_FULLY_OBSCURED: the window is not visible at all.
<!-- ##### ENUM GdkCrossingMode ##### -->
<para>
Specifies the crossing mode for #GdkEventCrossing.
</para>
@GDK_CROSSING_NORMAL: crossing because of pointer motion.
@GDK_CROSSING_GRAB: crossing because a grab is activated.
@GDK_CROSSING_UNGRAB: crossing because a grab is deactivated.
@GDK_CROSSING_GTK_GRAB: crossing because a GTK+ grab is activated.
@GDK_CROSSING_GTK_UNGRAB: crossing because a GTK+ grab is deactivated.
@GDK_CROSSING_STATE_CHANGED: crossing because a GTK+ widget changed state (e.g.
sensitivity).
<!-- ##### ENUM GdkNotifyType ##### -->
<para>
Specifies the kind of crossing for #GdkEventCrossing.
</para>
<para>
See the X11 protocol specification of <type>LeaveNotify</type> for
full details of crossing event generation.
</para>
@GDK_NOTIFY_ANCESTOR: the window is entered from an ancestor or
left towards an ancestor.
@GDK_NOTIFY_VIRTUAL: the pointer moves between an ancestor and an
inferior of the window.
@GDK_NOTIFY_INFERIOR: the window is entered from an inferior or
left towards an inferior.
@GDK_NOTIFY_NONLINEAR: the window is entered from or left towards
a window which is neither an ancestor nor an inferior.
@GDK_NOTIFY_NONLINEAR_VIRTUAL: the pointer moves between two windows
which are not ancestors of each other and the window is part of
the ancestor chain between one of these windows and their least
common ancestor.
@GDK_NOTIFY_UNKNOWN: an unknown type of enter/leave event occurred.
<!-- ##### ENUM GdkPropertyState ##### -->
<para>
Specifies the type of a property change for a #GdkEventProperty.
</para>
@GDK_PROPERTY_NEW_VALUE: the property value was changed.
@GDK_PROPERTY_DELETE: the property was deleted.
<!-- ##### ENUM GdkWindowState ##### -->
<para>
Specifies the state of a toplevel window.
</para>
@GDK_WINDOW_STATE_WITHDRAWN: the window is not shown.
@GDK_WINDOW_STATE_ICONIFIED: the window is minimized.
@GDK_WINDOW_STATE_MAXIMIZED: the window is maximized.
@GDK_WINDOW_STATE_STICKY: the window is sticky.
@GDK_WINDOW_STATE_FULLSCREEN: the window is maximized without decorations.
@GDK_WINDOW_STATE_ABOVE: the window is kept above other windows.
@GDK_WINDOW_STATE_BELOW: the window is kept below other windows.
<!-- ##### ENUM GdkSettingAction ##### -->
<para>
Specifies the kind of modification applied to a setting in a #GdkEventSetting.
</para>
@GDK_SETTING_ACTION_NEW: a setting was added.
@GDK_SETTING_ACTION_CHANGED: a setting was changed.
@GDK_SETTING_ACTION_DELETED: a setting was deleted.
<!-- ##### ENUM GdkOwnerChange ##### -->
<para>
Specifies why a selection ownership was changed.
</para>
@GDK_OWNER_CHANGE_NEW_OWNER: some other app claimed the ownership
@GDK_OWNER_CHANGE_DESTROY: the window was destroyed
@GDK_OWNER_CHANGE_CLOSE: the client was closed

536
gdk/gdkevents.h
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@ -38,6 +38,23 @@
G_BEGIN_DECLS
/**
* SECTION:event_structs
* @Short_description: Data structures specific to each type of event
* @Title: Event Structures
*
* The event structs contain data specific to each type of event in GDK.
*
* <note>
* <para>
* A common mistake is to forget to set the event mask of a widget so that
* the required events are received. See gtk_widget_set_events().
* </para>
* </note>
*/
#define GDK_TYPE_EVENT (gdk_event_get_type ())
/**
@ -251,6 +268,14 @@ typedef enum
GDK_EVENT_LAST /* helper variable for decls */
} GdkEventType;
/**
* GdkVisibilityState:
* @GDK_VISIBILITY_UNOBSCURED: the window is completely visible.
* @GDK_VISIBILITY_PARTIAL: the window is partially visible.
* @GDK_VISIBILITY_FULLY_OBSCURED: the window is not visible at all.
*
* Specifies the visiblity status of a window for a #GdkEventVisibility.
*/
typedef enum
{
GDK_VISIBILITY_UNOBSCURED,
@ -258,6 +283,15 @@ typedef enum
GDK_VISIBILITY_FULLY_OBSCURED
} GdkVisibilityState;
/**
* GdkScrollDirection:
* @GDK_SCROLL_UP: the window is scrolled up.
* @GDK_SCROLL_DOWN: the window is scrolled down.
* @GDK_SCROLL_LEFT: the window is scrolled to the left.
* @GDK_SCROLL_RIGHT: the window is scrolled to the right.
*
* Specifies the direction for #GdkEventScroll.
*/
typedef enum
{
GDK_SCROLL_UP,
@ -266,13 +300,26 @@ typedef enum
GDK_SCROLL_RIGHT
} GdkScrollDirection;
/* Types of enter/leave notifications.
* Ancestor:
* Virtual:
* Inferior:
* Nonlinear:
* NonlinearVirtual:
* Unknown: An unknown type of enter/leave event occurred.
/**
* GdkNotifyType:
* @GDK_NOTIFY_ANCESTOR: the window is entered from an ancestor or
* left towards an ancestor.
* @GDK_NOTIFY_VIRTUAL: the pointer moves between an ancestor and an
* inferior of the window.
* @GDK_NOTIFY_INFERIOR: the window is entered from an inferior or
* left towards an inferior.
* @GDK_NOTIFY_NONLINEAR: the window is entered from or left towards
* a window which is neither an ancestor nor an inferior.
* @GDK_NOTIFY_NONLINEAR_VIRTUAL: the pointer moves between two windows
* which are not ancestors of each other and the window is part of
* the ancestor chain between one of these windows and their least
* common ancestor.
* @GDK_NOTIFY_UNKNOWN: an unknown type of enter/leave event occurred.
*
* Specifies the kind of crossing for #GdkEventCrossing.
*
* See the X11 protocol specification of <type>LeaveNotify</type> for
* full details of crossing event generation.
*/
typedef enum
{
@ -284,10 +331,17 @@ typedef enum
GDK_NOTIFY_UNKNOWN = 5
} GdkNotifyType;
/* Enter/leave event modes.
* NotifyNormal
* NotifyGrab
* NotifyUngrab
/**
* GdkCrossingMode:
* @GDK_CROSSING_NORMAL: crossing because of pointer motion.
* @GDK_CROSSING_GRAB: crossing because a grab is activated.
* @GDK_CROSSING_UNGRAB: crossing because a grab is deactivated.
* @GDK_CROSSING_GTK_GRAB: crossing because a GTK+ grab is activated.
* @GDK_CROSSING_GTK_UNGRAB: crossing because a GTK+ grab is deactivated.
* @GDK_CROSSING_STATE_CHANGED: crossing because a GTK+ widget changed
* state (e.g. sensitivity).
*
* Specifies the crossing mode for #GdkEventCrossing.
*/
typedef enum
{
@ -299,12 +353,32 @@ typedef enum
GDK_CROSSING_STATE_CHANGED
} GdkCrossingMode;
/**
* GdkPropertyState:
* @GDK_PROPERTY_NEW_VALUE: the property value was changed.
* @GDK_PROPERTY_DELETE: the property was deleted.
*
* Specifies the type of a property change for a #GdkEventProperty.
*/
typedef enum
{
GDK_PROPERTY_NEW_VALUE,
GDK_PROPERTY_DELETE
} GdkPropertyState;
/**
* GdkWindowState:
* @GDK_WINDOW_STATE_WITHDRAWN: the window is not shown.
* @GDK_WINDOW_STATE_ICONIFIED: the window is minimized.
* @GDK_WINDOW_STATE_MAXIMIZED: the window is maximized.
* @GDK_WINDOW_STATE_STICKY: the window is sticky.
* @GDK_WINDOW_STATE_FULLSCREEN: the window is maximized without
* decorations.
* @GDK_WINDOW_STATE_ABOVE: the window is kept above other windows.
* @GDK_WINDOW_STATE_BELOW: the window is kept below other windows.
*
* Specifies the state of a toplevel window.
*/
typedef enum
{
GDK_WINDOW_STATE_WITHDRAWN = 1 << 0,
@ -316,6 +390,15 @@ typedef enum
GDK_WINDOW_STATE_BELOW = 1 << 6
} GdkWindowState;
/**
* GdkSettingAction:
* @GDK_SETTING_ACTION_NEW: a setting was added.
* @GDK_SETTING_ACTION_CHANGED: a setting was changed.
* @GDK_SETTING_ACTION_DELETED: a setting was deleted.
*
* Specifies the kind of modification applied to a setting in a
* #GdkEventSetting.
*/
typedef enum
{
GDK_SETTING_ACTION_NEW,
@ -323,6 +406,14 @@ typedef enum
GDK_SETTING_ACTION_DELETED
} GdkSettingAction;
/**
* GdkOwnerChange:
* @GDK_OWNER_CHANGE_NEW_OWNER: some other app claimed the ownership
* @GDK_OWNER_CHANGE_DESTROY: the window was destroyed
* @GDK_OWNER_CHANGE_CLOSE: the client was closed
*
* Specifies why a selection ownership was changed.
*/
typedef enum
{
GDK_OWNER_CHANGE_NEW_OWNER,
@ -330,6 +421,17 @@ typedef enum
GDK_OWNER_CHANGE_CLOSE
} GdkOwnerChange;
/**
* GdkEventAny:
* @type: the type of the event.
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
*
* Contains the fields which are common to all event structs.
* Any event pointer can safely be cast to a pointer to a #GdkEventAny to
* access these fields.
*/
struct _GdkEventAny
{
GdkEventType type;
@ -337,6 +439,22 @@ struct _GdkEventAny
gint8 send_event;
};
/**
* GdkEventExpose:
* @type: the type of the event (%GDK_EXPOSE or %GDK_DAMAGE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @area: bounding box of @region.
* @region: the region that needs to be redrawn.
* @count: the number of contiguous %GDK_EXPOSE events following this one.
* The only use for this is "exposure compression", i.e. handling all
* contiguous %GDK_EXPOSE events in one go, though GDK performs some
* exposure compression so this is not normally needed.
*
* Generated when all or part of a window becomes visible and needs to be
* redrawn.
*/
struct _GdkEventExpose
{
GdkEventType type;
@ -347,6 +465,16 @@ struct _GdkEventExpose
gint count; /* If non-zero, how many more events follow. */
};
/**
* GdkEventNoExpose:
* @type: the type of the event (%GDK_NO_EXPOSE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
*
* Generated when the area of a #GdkDrawable being copied was completely
* available.
*/
struct _GdkEventNoExpose
{
GdkEventType type;
@ -354,6 +482,17 @@ struct _GdkEventNoExpose
gint8 send_event;
};
/**
* GdkEventVisibility:
* @type: the type of the event (%GDK_VISIBILITY_NOTIFY).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @state: the new visibility state (%GDK_VISIBILITY_FULLY_OBSCURED,
* %GDK_VISIBILITY_PARTIAL or %GDK_VISIBILITY_UNOBSCURED).
*
* Generated when the window visibility status has changed.
*/
struct _GdkEventVisibility
{
GdkEventType type;
@ -362,6 +501,29 @@ struct _GdkEventVisibility
GdkVisibilityState state;
};
/**
* GdkEventMotion:
* @type: the type of the event.
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @time: the time of the event in milliseconds.
* @x: the x coordinate of the pointer relative to the window.
* @y: the y coordinate of the pointer relative to the window.
* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
* the mouse.
* @state: a bit-mask representing the state of the modifier keys (e.g.
* Control, Shift and Alt) and the pointer buttons. See #GdkModifierType.
* @is_hint: set to 1 if this event is just a hint, see the
* %GDK_POINTER_MOTION_HINT_MASK value of #GdkEventMask.
* @device: the device where the event originated.
* @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.
*
* Generated when the pointer moves.
*/
struct _GdkEventMotion
{
GdkEventType type;
@ -377,6 +539,65 @@ struct _GdkEventMotion
gdouble x_root, y_root;
};
/**
* GdkEventButton:
* @type: the type of the event (%GDK_BUTTON_PRESS, %GDK_2BUTTON_PRESS,
* %GDK_3BUTTON_PRESS or %GDK_BUTTON_RELEASE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @time: the time of the event in milliseconds.
* @x: the x coordinate of the pointer relative to the window.
* @y: the y coordinate of the pointer relative to the window.
* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
* the mouse.
* @state: a bit-mask representing the state of the modifier keys (e.g.
* Control, Shift and Alt) and the pointer buttons. See #GdkModifierType.
* @button: the button which was pressed or released, numbered from 1 to 5.
* Normally button 1 is the left mouse button, 2 is the middle button,
* and 3 is the right button. On 2-button mice, the middle button can
* often be simulated by pressing both mouse buttons together.
* @device: the device where the event originated.
* @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.
*
* Used for button press and button release events. The
* @type field will be one of %GDK_BUTTON_PRESS,
* %GDK_2BUTTON_PRESS, %GDK_3BUTTON_PRESS, and %GDK_BUTTON_RELEASE.
*
* Double and triple-clicks result in a sequence of events being received.
* For double-clicks the order of events will be:
* <orderedlist>
* <listitem><para>%GDK_BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
* <listitem><para>%GDK_BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_2BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
* </orderedlist>
* Note that the first click is received just like a normal
* button press, while the second click results in a %GDK_2BUTTON_PRESS
* being received just after the %GDK_BUTTON_PRESS.
*
* Triple-clicks are very similar to double-clicks, except that
* %GDK_3BUTTON_PRESS is inserted after the third click. The order of the
* events is:
* <orderedlist>
* <listitem><para>%GDK_BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
* <listitem><para>%GDK_BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_2BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
* <listitem><para>%GDK_BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_3BUTTON_PRESS</para></listitem>
* <listitem><para>%GDK_BUTTON_RELEASE</para></listitem>
* </orderedlist>
*
* For a double click to occur, the second button press must occur within
* 1/4 of a second of the first. For a triple click to occur, the third
* button press must also occur within 1/2 second of the first button press.
*/
struct _GdkEventButton
{
GdkEventType type;
@ -392,6 +613,29 @@ struct _GdkEventButton
gdouble x_root, y_root;
};
/**
* GdkEventScroll:
* @type: the type of the event (%GDK_SCROLL).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @time: the time of the event in milliseconds.
* @x: the x coordinate of the pointer relative to the window.
* @y: the y coordinate of the pointer relative to the window.
* @state: a bit-mask representing the state of the modifier keys (e.g.
* Control, Shift and Alt) and the pointer buttons. See #GdkModifierType.
* @direction: the direction to scroll to (one of %GDK_SCROLL_UP,
* %GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT and %GDK_SCROLL_RIGHT).
* @device: the device where the event originated.
* @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.
*
* Generated from button presses for the buttons 4 to 7. Wheel mice are
* usually configured to generate button press events for buttons 4 and 5
* when the wheel is turned.
*/
struct _GdkEventScroll
{
GdkEventType type;
@ -406,6 +650,37 @@ struct _GdkEventScroll
gdouble x_root, y_root;
};
/**
* GdkEventKey:
* @type: the type of the event (%GDK_KEY_PRESS or %GDK_KEY_RELEASE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @time: the time of the event in milliseconds.
* @state: a bit-mask representing the state of the modifier keys (e.g.
* Control, Shift and Alt) and the pointer buttons. See #GdkModifierType.
* @keyval: the key that was pressed or released. See the
* <filename>&lt;gdk/gdkkeysyms.h&gt;</filename> header file for a
* complete list of GDK key codes.
* @length: the length of @string.
* @string: a string containing the an approximation of the text that
* would result from this keypress. The only correct way to handle text
* input of text is using input methods (see #GtkIMContext), so this
* field is deprecated and should never be used.
* (gdk_unicode_to_keyval() provides a non-deprecated way of getting
* an approximate translation for a key.) The string is encoded in the
* encoding of the current locale (Note: this for backwards compatibility:
* strings in GTK+ and GDK are typically in UTF-8.) and NUL-terminated.
* In some cases, the translation of the key code will be a single
* NUL byte, in which case looking at @length is necessary to distinguish
* it from the an empty translation.
* @hardware_keycode: the raw code of the key that was pressed or released.
* @group: the keyboard group.
* @is_modifier: a flag that indicates if @hardware_keycode is mapped to a
* modifier. Since 2.10
*
* Describes a key press or key release event.
*/
struct _GdkEventKey
{
GdkEventType type;
@ -421,6 +696,32 @@ struct _GdkEventKey
guint is_modifier : 1;
};
/**
* GdkEventCrossing:
* @type: the type of the event (%GDK_ENTER_NOTIFY or %GDK_LEAVE_NOTIFY).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @subwindow: the window that was entered or left.
* @time: the time of the event in milliseconds.
* @x: the x coordinate of the pointer relative to the window.
* @y: the y coordinate of the pointer relative to the window.
* @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.
* @mode: the crossing mode (%GDK_CROSSING_NORMAL, %GDK_CROSSING_GRAB,
* %GDK_CROSSING_UNGRAB, %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB or
* %GDK_CROSSING_STATE_CHANGED). %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB,
* and %GDK_CROSSING_STATE_CHANGED were added in 2.14 and are always synthesized,
* never native.
* @detail: the kind of crossing that happened (%GDK_NOTIFY_INFERIOR,
* %GDK_NOTIFY_ANCESTOR, %GDK_NOTIFY_VIRTUAL, %GDK_NOTIFY_NONLINEAR or
* %GDK_NOTIFY_NONLINEAR_VIRTUAL).
* @focus: %TRUE if @window is the focus window or an inferior.
* @state: a bit-mask representing the state of the modifier keys (e.g. Control,
* Shift and Alt) and the pointer buttons. See #GdkModifierType.
*
* Generated when the pointer enters or leaves a window.
*/
struct _GdkEventCrossing
{
GdkEventType type;
@ -438,6 +739,17 @@ struct _GdkEventCrossing
guint state;
};
/**
* GdkEventFocus:
* @type: the type of the event (%GDK_FOCUS_CHANGE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @in: %TRUE if the window has gained the keyboard focus, %FALSE if
* it has lost the focus.
*
* Describes a change of keyboard focus.
*/
struct _GdkEventFocus
{
GdkEventType type;
@ -446,6 +758,19 @@ struct _GdkEventFocus
gint16 in;
};
/**
* GdkEventConfigure:
* @type: the type of the event (%GDK_CONFIGURE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @x: the new x coordinate of the window, relative to its parent.
* @y: the new y coordinate of the window, relative to its parent.
* @width: the new width of the window.
* @height: the new height of the window.
*
* Generated when a window size or position has changed.
*/
struct _GdkEventConfigure
{
GdkEventType type;
@ -456,6 +781,19 @@ struct _GdkEventConfigure
gint height;
};
/**
* GdkEventProperty:
* @type: the type of the event (%GDK_PROPERTY_NOTIFY).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @atom: the property that was changed.
* @time: the time of the event in milliseconds.
* @state: whether the property was changed (%GDK_PROPERTY_NEW_VALUE) or
* deleted (%GDK_PROPERTY_DELETE).
*
* Describes a property change on a window.
*/
struct _GdkEventProperty
{
GdkEventType type;
@ -466,6 +804,22 @@ struct _GdkEventProperty
guint state;
};
/**
* GdkEventSelection:
* @type: the type of the event (%GDK_SELECTION_CLEAR,
* %GDK_SELECTION_NOTIFY or %GDK_SELECTION_REQUEST).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @selection: the selection.
* @target: the target to which the selection should be converted.
* @property: the property in which to place the result of the conversion.
* @time: the time of the event in milliseconds.
* @requestor: the native window on which to place @property.
*
* Generated when a selection is requested or ownership of a selection
* is taken over by another client application.
*/
struct _GdkEventSelection
{
GdkEventType type;
@ -478,6 +832,25 @@ struct _GdkEventSelection
GdkNativeWindow requestor;
};
/**
* GdkEventOwnerChange:
* @type: the type of the event (%GDK_OWNER_CHANGE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @owner: the new owner of the selection.
* @reason: the reason for the ownership change as a #GdkOwnerChange value.
* @selection: the atom identifying the selection.
* @time: the timestamp of the event.
* @selection_time: the time at which the selection ownership was taken
* over.
*
* Generated when the owner of a selection changes. On X11, this
* information is only available if the X server supports the XFIXES
* extension.
*
* Since: 2.6
*/
struct _GdkEventOwnerChange
{
GdkEventType type;
@ -490,9 +863,24 @@ struct _GdkEventOwnerChange
guint32 selection_time;
};
/* This event type will be used pretty rarely. It only is important
for XInput aware programs that are drawing their own cursor */
/**
* GdkEventProximity:
* @type: the type of the event (%GDK_PROXIMITY_IN or %GDK_PROXIMITY_OUT).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using <function>XSendEvent</function>).
* @time: the time of the event in milliseconds.
* @device: the device where the event originated.
*
* Proximity events are generated when using GDK's wrapper for the
* XInput extension. The XInput extension is an add-on for standard X
* that allows you to use nonstandard devices such as graphics tablets.
* A proximity event indicates that the stylus has moved in or out of
* contact with the tablet, or perhaps that the user's finger has moved
* in or out of contact with a touch screen.
*
* This event type will be used pretty rarely. It only is important for
* XInput aware programs that are drawing their own cursor.
*/
struct _GdkEventProximity
{
GdkEventType type;
@ -502,6 +890,21 @@ struct _GdkEventProximity
GdkDevice *device;
};
/**
* GdkEventClient:
* @type: the type of the event (%GDK_CLIENT_EVENT).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @message_type: the type of the message, which can be defined by the
* application.
* @data_format: the format of the data, given as the number of bits in each
* data element, i.e. 8, 16, or 32. 8-bit data uses the b array of the
* data union, 16-bit data uses the s array, and 32-bit data uses the l
* array.
*
* An event sent by another client application.
*/
struct _GdkEventClient
{
GdkEventType type;
@ -516,6 +919,18 @@ struct _GdkEventClient
} data;
};
/**
* GdkEventSetting:
* @type: the type of the event (%GDK_SETTING).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @action: what happened to the setting (%GDK_SETTING_ACTION_NEW,
* %GDK_SETTING_ACTION_CHANGED or %GDK_SETTING_ACTION_DELETED).
* @name: the name of the setting.
*
* Generated when a setting is modified.
*/
struct _GdkEventSetting
{
GdkEventType type;
@ -525,6 +940,18 @@ struct _GdkEventSetting
char *name;
};
/**
* GdkEventWindowState:
* @type: the type of the event (%GDK_WINDOW_STATE).
* @window: the window which received the event.
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @changed_mask: mask specifying what flags have changed.
* @new_window_state: the new window state, a combination of
* #GdkWindowState bits.
*
* Generated when the state of a toplevel window changes.
*/
struct _GdkEventWindowState
{
GdkEventType type;
@ -534,6 +961,28 @@ struct _GdkEventWindowState
GdkWindowState new_window_state;
};
/**
* GdkEventGrabBroken:
* @type: the type of the event (%GDK_GRAB_BROKEN)
* @window: the window which received the event, i.e. the window
* that previously owned the grab
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @keyboard: %TRUE if a keyboard grab was broken, %FALSE if a pointer
* grab was broken
* @implicit: %TRUE if the broken grab was implicit
* @grab_window: If this event is caused by another grab in the same
* application, @grab_window contains the new grab window. Otherwise
* @grab_window is %NULL.
*
* Generated when a pointer or keyboard grab is broken. On X11, this happens
* when the grab window becomes unviewable (i.e. it or one of its ancestors
* is unmapped), or if the same application grabs the pointer or keyboard
* again. Note that implicit grabs (which are initiated by button presses)
* can also cause #GdkEventGrabBroken events.
*
* Since: 2.8
*/
struct _GdkEventGrabBroken {
GdkEventType type;
GdkWindow *window;
@ -543,8 +992,23 @@ struct _GdkEventGrabBroken {
GdkWindow *grab_window;
};
/* Event types for DND */
/**
* GdkEventDND:
* @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 (e.g. using
* <function>XSendEvent</function>).
* @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 {
GdkEventType type;
GdkWindow *window;
@ -555,6 +1019,46 @@ struct _GdkEventDND {
gshort x_root, y_root;
};
/**
* GdkEvent:
*
* The #GdkEvent struct contains a union of all of the event structs,
* 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 structs, and
* can always be accessed with the following code, no matter what type of
* event it is:
* <informalexample>
* <programlisting>
* GdkEvent *event;
* GdkEventType type;
*
* type = event->type;
* </programlisting>
* </informalexample>
*
* To access other fields of the event structs, the pointer to the event
* can be cast to the appropriate event struct pointer, 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:
* <informalexample>
* <programlisting>
* GdkEvent *event;
* gdouble x;
*
* x = ((GdkEventButton*)event)->x;
* </programlisting>
* </informalexample>
* or:
* <informalexample>
* <programlisting>
* GdkEvent *event;
* gdouble x;
*
* x = event->button.x;
* </programlisting>
* </informalexample>
*/
union _GdkEvent
{
GdkEventType type;

6
gdk/gdktypes.h
View File

@ -120,6 +120,12 @@ typedef struct _GdkAtom *GdkAtom;
*/
#define GDK_NONE _GDK_MAKE_ATOM (0)
/**
* GdkNativeWindow:
*
* Used to represent native windows (<type>Window</type>s for the X11
* backend, <type>HWND</type>s for Win32).
*/
#ifdef GDK_NATIVE_WINDOW_POINTER
typedef gpointer GdkNativeWindow;
#else