void gdk_window_set_events ( GdkWindow* window, GdkEventMask event_mask )
The event mask for a window determines which events will be reported
for that window from all master input devices. For example, an event mask
including #GDK_BUTTON_PRESS_MASK means the window should report button
press events. The event mask is the bitwise OR of values from the
See the [input handling overview][event-masks] for details.
Event mask for