Re: WM_TIMER prevents window from being displayed ???

"David Ching" <>
Fri, 4 Jul 2008 13:27:00 -0700
"David Lowndes" <DavidL@example.invalid> wrote in message

In fact the GetMessage documentation agrees with you:

"If no filter is specified, messages are processed in the following

Sent messages
Posted messages
Input (hardware) messages and system internal events
Sent messages (again)
WM_PAINT messages
WM_TIMER messages

Thanks, I hadn't found concrete evidence of this priority, it's good to know
it's documented.

Perhaps the situation of the OP isn't quite so clear cut, but
nevertheless, expecting to handle WM_TIMER messages so frequently is
not going to be reliable or a good way of doing things.

Not sure what is going on with him. Maybe he should kill and reset the
timer after he adds the panes. I did comment my code that I first had to
call SetTimer(0), and only after the first OnTimer() was called did I call
SetTimer(<original ms value>) to get normal timer messages after that.
Apparently the SetTimer(0) was important for the paint to occur at the right

-- David

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