Always make wxWindow::SetFocus() focus the window, overriding SetCanFocus, some more focus related docs

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48747 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/window.h

@@ -60,7 +60,8 @@ public:
     virtual bool IsRetained() const;
 
     virtual void SetFocus();
-    virtual void SetFocusIgnoringChildren();
+    
+    // hint from wx to native GTK+ tab traversal code
     virtual void SetCanFocus(bool canFocus);
 
     virtual bool Reparent( wxWindowBase *newParent );