Applied #11236: Event from thread not processed

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@62085 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/app.cpp

@@ -563,6 +563,10 @@ void wxApp::WakeUpIdle()
             }
         }
     }
+#if wxUSE_THREADS
+    else
+        wxWakeUpMainThread();
+#endif // wxUSE_THREADS
 }
 
 // ----------------------------------------------------------------------------