Re: How to use/understand <Expose> events on MS Windows

On Jun 13, 4:00 pm, "Donal K. Fellows"
<donal.k.fell...@xxxxxxxxxxxxxxxx> wrote:
... There's nothing like a
<Visibility> event possible on Windows though; you're not told when
someone moves a window over yours (or away from being over), or if you
are, it's not obvious which message you're given in that case...

That fits with my limited experience, also: Windows simply invalidates
a rectangle and sends a WM_PAINT message. But I expect that to only be
if your window is uncovered. I expect it gets nothing if it becomes