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win32: Call GetQueueStatus instead of PeekMessage PM_NOREMOVE

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Calling PeekMessage can cause reentrant calls into the window procedure
for sent (as opposed to posted) messages, so its not safe to call
when we're not expecting reentrancy. Instead we call GetQueueStatus
when we're just looking for availible messages.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=552041
This commit is contained in:
Dieter Verfaillie 2011-10-21 11:38:31 +02:00 committed by Alexander Larsson
parent 67c410d51b
commit 12507a7cc2
1 changed files with 3 additions and 6 deletions
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9
gdk/win32/gdkevents-win32.c
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@ -375,10 +375,9 @@ _gdk_events_init (void)
gboolean
gdk_events_pending (void)
{
MSG msg;
return (_gdk_event_queue_find_first (_gdk_display) ||
(modal_win32_dialog == NULL &&
PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
GetQueueStatus (QS_ALLINPUT) != 0));
}
GdkEvent*
@ -3563,7 +3562,6 @@ static gboolean
gdk_event_prepare (GSource *source,
gint *timeout)
{
MSG msg;
gboolean retval;
GDK_THREADS_ENTER ();
@ -3572,7 +3570,7 @@ gdk_event_prepare (GSource *source,
retval = (_gdk_event_queue_find_first (_gdk_display) != NULL ||
(modal_win32_dialog == NULL &&
PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
GetQueueStatus (QS_ALLINPUT) != 0));
GDK_THREADS_LEAVE ();
@ -3582,7 +3580,6 @@ gdk_event_prepare (GSource *source,
static gboolean
gdk_event_check (GSource *source)
{
MSG msg;
gboolean retval;
GDK_THREADS_ENTER ();
@ -3591,7 +3588,7 @@ gdk_event_check (GSource *source)
{
retval = (_gdk_event_queue_find_first (_gdk_display) != NULL ||
(modal_win32_dialog == NULL &&
PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
GetQueueStatus (QS_ALLINPUT) != 0));
}
else
{