2009/3/18 Vincent Povirk <madewokherd+8...@gmail.com>: > On Wed, Mar 18, 2009 at 1:34 PM, Nicolas Le Cam <niko.le...@gmail.com> wrote: >> Ok, did more testing ... >> It seems you're right, adding a do_events() call after each >> DestroyWindow() one seems to fix the test on Win2k. >> Do you think this is a better fix ? > > No, that probably creates a race condition. I've seen the windows > implementation post messages after SHAppBarMessage returns, and it may > sometimes post the notification between do_events() and the next > SHAppBarMessage call. > > In general, do_events() cannot reliably catch messages that are posted > as a result of a previous SHABM call. > > I still think that removing the code resetting GWLP_USERDATA is the best fix. >
Ok I will follow your advice. Thanks for your patience and support. -- Nicolas Le Cam