Some doc corrections (added blank lines at end of docs); corrected Forty sample

dialog behaviour; added dummy menubar constructors; corrected wxMSW wxRegion bug


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1684 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/motif/window.cpp

@@ -235,7 +235,11 @@ wxWindow::~wxWindow()
     // Destroy the window
     if (GetMainWidget())
     {
-        wxDeleteWindowFromTable((Widget) GetMainWidget());
+        // If this line (XtDestroyWidget) causes a crash, you may comment it out.
+        // Child widgets will get destroyed automatically when a frame
+        // or dialog is destroyed, but before that you may get some memory
+        // leaks and potential layout problems if you delete and then add
+        // child windows.
         XtDestroyWidget((Widget) GetMainWidget());
         SetMainWidget((WXWidget) NULL);
     }