GDK Reference Manual

　　GDK_PROXIMITY_IN_MASK

　　GDK_PROXIMITY_OUT_MASK

　　GDK_SUBSTRUCTURE_MASK

　　GDK_ALL_EVENTS_MASK the combination of all the above event masks.

GDK_CURRENT_TIME
#define GDK_CURRENT_TIME 0L 

　　Represents the current time, and can be used anywhere a time is expected.

GDK_PRIORITY_EVENTS
#defineGDK_PRIORITY_EVENTS(G_PRIORITY_DEFAULT) 

　　This is the priority that events from the X server are given in the GLib Main Loop.

gdk_events_pending ()
gbooleangdk_events_pending(void); 

　　Checks if any events are waiting to be processed.

　　Returns : TRUE if any events are pending.

gdk_event_peek ()
GdkEvent* gdk_event_peek(void); 

　　Gets a copy of the first GdkEvent in the event queue. (Note that this function will not get more events from the X server. It only checks the events that have already been moved to the GDK event queue.)

　　Returns : a copy of the first GdkEvent on the event queue, or NULL if no events are in the queue. The returned GdkEvent should be freed with gdk_event_free().

gdk_event_get ()
GdkEvent* gdk_event_get (void); 

　　Gets the next GdkEvent to be processed, fetching events from the X server if necessary.

　　Returns : the next GdkEvent to be processed, or NULL if no events are pending. The returned GdkEvent should be freed with gdk_event_free().

gdk_event_get_graphics_expose ()
GdkEvent* gdk_event_get_graphics_expose (GdkWindow *window); 

　　Waits for a GraphicsExpose or NoExpose event from the X server. This is used in the GtkText and GtkCList widgets in GTK+ to make sure any GraphicsExpose events are handled before the widget is scrolled.

　　window : the GdkWindow to wait for the events for.

　　Returns : a GdkEventExpose if a GraphicsExpose was received, or NULL if a NoExpose event was received.

gdk_event_put ()
voidgdk_event_put (GdkEvent *event); 

　　Appends a copy of the given event onto the front of the event queue.

　　event : a GdkEvent.

gdk_event_copy ()
GdkEvent* gdk_event_copy(GdkEvent *event); 

　　Copies a GdkEvent, copying or incrementing the reference count of the resources associated with it (e.g. GdkWindow's and strings).

　　event : a GdkEvent.

　　Returns : a copy of event. The returned GdkEvent should be freed with gdk_event_free().

gdk_event_free ()
voidgdk_event_free(GdkEvent *event); 

　　Frees a GdkEvent, freeing or decrementing any resources associated with it. Note that this function should only be called with events returned from gdk_event_peek(), gdk_event_get(), gdk_event_get_graphics_expose() and gdk_event_copy().

　　event : a GdkEvent.

gdk_event_get_time ()
guint32 gdk_event_get_time(GdkEvent *event); 

　　Gets the timestamp from a GdkEvent.

　　event : a GdkEvent.

　　Returns : the timestamp from event, or GDK_CURRENT_TIME if the event has no timestamp.

gdk_event_handler_set ()
voidgdk_event_handler_set (GdkEventFunc func,
gpointer data,GDestroyNotify notify); 

　　Sets the function to call to handle all events from GDK.

　　Note that GTK+ uses this to install its own event handler, so it is probably not useful for GTK+ applications.

　　func : the function to call to handle events from GDK.

　　data : user data to pass to the function.

　　notify : the function to call when the handler function is removed, i.e. when gdk_event_handler_set() is called with another event handler.