Does wine send window messages without waiting apps to reenter userdll?

[Javier Pimás]

I wrote a small test which I attach here, very small program where you can
see if WndProc is called from WaitMessage. It fails, which I think shows
what I doubted is actually happening. Tested in the old 1.6.2 wine and also
in 1.7.50.

Cheers!

On Wed, Aug 26, 2015 at 11:29 AM, Sebastian Lackner <sebastian at fds-team.de>
wrote:

> On 26.08.2015 16:04, Sebastian Lackner wrote:
> > If you are concerned that WaitMessage immediately dispatches the
> messages,
> > Wine doesn't do that. Processing of window messages is only done in the
> > context of GetMessage and PeekMessage, no matter if its a "queued" or
> > "non-queued" message. In fact Wine doesn't really make a difference
> between
> > the two, it just assigns specific internal message numbers for non-queued
> > messages. To identify those the the highest bit (0x80000000) is set.
>
> After reading the last part again I noticed that I wasn't really very
> precise,
> because I somehow already assumed that you are talking about non-queued
> messages
> caused by SetWindowPos and things like that. Those are implemented using
> internal
> messages in Wine, and might be affected by the "bugs" mentioned in the
> last mail.
>
> Besides that its of course also possible to send other non-queued messages
> directly with SendMessage and similar functions. But in this case the
> answer would
> be the same: WaitMessage does not dispatch them immediately, they are
> processed
> during a call to PeekMessage or GetMessage.
>
> Regards,
> Sebastian
>
>


-- 
Javier Pimás
Ciudad de Buenos Aires
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