-\func{bool}{Add}{\param{wxWindow* }{window}, \param{const wxGBPosition\& }{pos}, \param{const wxGBSpan\& }{span = wxDefaultSpan}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-
-\func{bool}{Add}{\param{wxSizer* }{sizer}, \param{const wxGBPosition\& }{pos}, \param{const wxGBSpan\& }{span = wxDefaultSpan}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-
-\func{bool}{Add}{\param{int }{width}, \param{int }{height}, \param{const wxGBPosition\& }{pos}, \param{const wxGBSpan\& }{span = wxDefaultSpan}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-
-\func{bool}{Add}{\param{wxGBSizerItem* }{item}}
+\func{wxSizerItem*}{Add}{\param{wxWindow* }{window}, \param{const wxGBPosition\& }{pos}, \param{const wxGBSpan\& }{span = wxDefaultSpan}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}