[USER32] GetQueueStatus() should not return 0 when passing QS_ALLINPU…

…T flag that includes QS_RAWINPUT (reactos#4115)

GTK applications call GetQueueStatus(QS_ALLINPUT), where QS_ALLINPUT
specifies the QS_RAWINPUT flag as well, when these are compiled for
Windows XP+, and they expect the call to succeed on this platform.

On one side, ReactOS does not currently support this flag at all, but
since it claims to be XP/2003-compatible, applications may implicitly
expect the flag to be supported by GetQueueStatus() and the function
*NOT* failing when this flag is set.
(Later GTK apps don't care and just call GetQueueStatus(QS_ALLINPUT)
that includes QS_RAWINPUT, and therefore would fail as well on e.g.
Windows 2000...)

Otherwise, an observable effect is that some versions of libgdk-win32-2.0.0.dll
enter into an infinite loop when calling GetQueueStatus(QS_ALLINPUT),
since this call always failed on ReactOS.

On the other side, however, we should honour our winetests that handle
the presence of the QS_RAWINPUT flag and behave differently accordingly.
But since we do not support QS_RAWINPUT yet, we should keep their old
behaviour where QS_RAWINPUT is unused.

Thus, in order to accomodate both sides, we don't fail the GetQueueStatus()
call, but just set the ERROR_INVALID_FLAGS last error and continue it.


This fixes CORE-15686, CORE-17551 and probably CORE-11850.
Fixes also all user32:TrackMouseEvent tests.

Co-authored-by: Hermès BÉLUSCA - MAÏTO <[email protected]>

win32ss/user/user32/windows/message.c

@@ -2899,12 +2899,21 @@ DWORD
 WINAPI
 RealGetQueueStatus(UINT flags)
 {
-   #define QS_TEMPALLINPUT 255 // ATM, do not support QS_RAWINPUT
-   if (flags & ~(QS_SMRESULT|QS_ALLPOSTMESSAGE|QS_TEMPALLINPUT))
+   if (flags & ~(QS_ALLINPUT|QS_ALLPOSTMESSAGE|QS_SMRESULT))
    {
       SetLastError( ERROR_INVALID_FLAGS );
       return 0;
    }
+   /** ATM, we do not support QS_RAWINPUT, but we need to support apps that pass
+    ** this flag along, while also working around QS_RAWINPUT checks in winetests.
+    ** Just set the last error to ERROR_INVALID_FLAGS but do not fail the call.
+    **/
+   if (flags & QS_RAWINPUT)
+   {
+      SetLastError(ERROR_INVALID_FLAGS);
+      flags &= ~QS_RAWINPUT;
+   }
+   /**/
    return NtUserxGetQueueStatus(flags);
 }