+ bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+ bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH)
+ { return Create(sz.GetWidth(), sz.GetHeight(), depth); }
+ bool Create(int width, int height, const wxDC& WXUNUSED(dc))
+ { return Create(width,height); }