Visibility Events

Visibility events occur when a window is obscured or unobscured. They are not very useful, because other events already give you the information you need. In particular, when a window is unobscured you receive expose events indicating which newly-visible areas should be redrawn. Here is the event:

typedef struct _GdkEventVisibility GdkEventVisibility;

struct _GdkEventVisibility
{
  GdkEventType type;
  GdkWindow *window;
  gint8 send_event;
  GdkVisibilityState state;
};

state is an enumeration value indicating whether the window was obscured or unobscured.