avoid duplicating wxWindow::HandleCommand() in wxFrame, only handle the commands for the frame menu bar elements there: this avoid generating duplicate events if a command event handler skips

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54498 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/frame.h

@@ -87,10 +87,19 @@ public:
     // and exists mainly in order to be overridden in the MDI parent frame
     // which also looks at its active child menu bar
     virtual const wxMenuItem *FindItemInMenuBar(int menuId) const;
-#endif // wxUSE_MENUS
 
-    // process menu command: returns true if processed
+    // generate menu command corresponding to the given menu item
+    //
+    // returns true if processed
+    bool ProcessCommand(wxMenuItem *item);
+
+    // generate menu command corresponding to the given menu command id
+    //
+    // returns true if processed
     bool ProcessCommand(int winid);
+#else
+    bool ProcessCommand(int WXUNUSED(winid)) { return false; }
+#endif // wxUSE_MENUS
 
     // status bar functions
     // --------------------