Returns whether surfaces can reasonably be expected to have their alpha channel drawn correctly on the screen.
Check [method@Gdk.Display.is_rgba] for whether the display supports an alpha channel.
On X11 this function returns whether a compositing manager is compositing on @display.
On modern displays, this value is always %TRUE.
Whether surfaces with RGBA visuals can reasonably be expected to have their alpha channels drawn correctly on the screen.
See Implementation
Returns whether surfaces can reasonably be expected to have their alpha channel drawn correctly on the screen.
Check [method@Gdk.Display.is_rgba] for whether the display supports an alpha channel.
On X11 this function returns whether a compositing manager is compositing on @display.
On modern displays, this value is always %TRUE.