Whether widget can rely on having its alpha channel
drawn correctly. On X11 this function returns whether a
compositing manager is running for widget’s screen.
Please note that the semantics of this call will change
in the future if used on a widget that has a composited
window in its hierarchy (as set by gdk.window.Window.setComposited).
Whether widget can rely on having its alpha channel drawn correctly. On X11 this function returns whether a compositing manager is running for widget’s screen.
Please note that the semantics of this call will change in the future if used on a widget that has a composited window in its hierarchy (as set by gdk.window.Window.setComposited).