attaching an unknown control like wxglcanvas

[Eric]

Well I know why it doesn't go to the correct spot.  When I call
GetSizer() it returns NULL.  Why would it loose its sizer?  Here is my
contructor for Navigator.

Navigator::Navigator(wxWindow* parent) : wxGLCanvas(parent, -1,
wxDefaultPosition, wxDefaultSize),openGL(OpenGLSingleton::instance()){
	wxXmlResource::Get()->AttachUnknownControl("navigator",
this);//&(wxPanel(parent)));
	if(GetSizer() == NULL) std::cout<<"no sizer\n";
	else std::cout<<"found a sizer\n";
	SetCurrent();
	openGL.init();
}