Don't crash in wxControl::GetLabel when getting the label

fails (perhaps because the widget is not realized?).
  Correct wxRTTI information for wxFrame: it derives from
wxTopLevelWindow, not wxWindow.
  Don't try setting Widget size to 0, because it will fail: set
it to 1 instead which is exactly as sensible, but does not crash.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23288 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/motif/window.cpp

@@ -1411,6 +1411,7 @@ void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
                 w -= 2 * (thick + margin);
             }
 
+            if( w < 1 ) w = 1;
             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
         }
 
@@ -1427,6 +1428,7 @@ void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
                 h -= 2 * (thick + margin);
             }
 
+            if( h < 1 ) h = 1;
             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
         }