Myabe this is what Emacs should do, create a pixmap, do its drawing there, and then XCopyArea it to the window when done.
Why do you think Emacs should do this? What benefit would it provide? I can't see any.
It reduces/eliminates flicker during redraw. But if the problem can be solved by other means that is better.
(In any case, this isn't the time to make such a change.)
Agreed.
Jan D.
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