Returns whether windows with an RGBA visual can reasonably be expected to have their alpha channel drawn correctly on the screen. On X11 this function returns whether a compositing manager is compositing screen. Since 2.10
Whether windows with RGBA visuals can reasonably be expected to have their alpha channels drawn correctly on the screen.
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Returns whether windows with an RGBA visual can reasonably be expected to have their alpha channel drawn correctly on the screen. On X11 this function returns whether a compositing manager is compositing screen. Since 2.10