class VegaTab4 : public WithVegaTab4Layout<ParentCtrl> {
ToolBar toolbar;
FontHeight edt;
EditString edts;
public:
String  filename;
	typedef VegaTab4 CLASSNAME;
...
}

VegaTab4::VegaTab4()
{   int i;
    CtrlLayout(*this);
    SizePos();
    AddFrame(toolbar);	 
    toolbar.Set(THISBACK(MainBar));
... // not important           
}