transparency make it impossible to track the visibility of a window reliably, so this event can not be guaranteed to provide useful information.
gdk.event_visibility
Module for [EventVisibility] class
class EventVisibility
Types 1
classEventVisibility
Generated when the window visibility status has changed.
Deprecated
Modern composited windowing systems with pervasive
Fields
GdkEventVisibility _cInstanceMethods
void * _cPtr()gdk.types.EventType type() @propertyGet `type` field. Returns: the type of the event ([gdk.types.EventType.VisibilityNotify]).void type(gdk.types.EventType propval) @propertySet `type` field. Params: propval = the type of the event ([gdk.types.EventType.VisibilityNotify]).gdk.window.Window window() @propertyGet `window` field. Returns: the window which received the event.void window(gdk.window.Window propval) @propertySet `window` field. Params: propval = the window which received the event.void sendEvent(byte propval) @propertySet `sendEvent` field. Params: propval = true if the event was sent explicitly.gdk.types.VisibilityState state() @propertyGet `state` field. Returns: the new visibility state ([gdk.types.VisibilityState.FullyObscured], [gdk.types.VisibilityState.Partial] or [gdk.types.VisibilityState.Unobscured]).void state(gdk.types.VisibilityState propval) @propertySet `state` field. Params: propval = the new visibility state ([gdk.types.VisibilityState.FullyObscured], [gdk.types.VisibilityState.Partial] or [gdk.types.VisibilityState.Unobscured]).