use HandleWindowEvent() in ProcessCommand(); return the value this function returns instead of returning true unconditionally

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@51464 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/framecmn.cpp

@@ -211,8 +211,7 @@ bool wxFrameBase::ProcessCommand(int id)
         }
     }
 
-    GetEventHandler()->ProcessEvent(commandEvent);
-    return true;
+    return HandleWindowEvent(commandEvent);
 #else // !wxUSE_MENUS
     wxUnusedVar(id);