Ensure that wxApp::Yield is always processing pending event by creating a

temporary event loop if needed.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53607 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/app.cpp

@@ -551,6 +551,7 @@ bool wxApp::Yield(bool onlyIfNeeded)
     // We want to go back to the main message loop
     // if we see a WM_QUIT. (?)
     //
+    wxEventLoopGuarantor dummyLoopIfNeeded;
     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
     {
 #if wxUSE_THREADS