#include <CtrlLib/CtrlLib.h>

using namespace Upp;

class guitest : public TopWindow {
public:
	typedef guitest CLASSNAME;
	Switch s;
	void change(){
		PromptOK(DeQtf("Switched to value "+AsString(~s)));	//"~s" is shorthand for s.GetData()
	}
	guitest(){
		Add(s);	s.SizePos(); //in your case, this is already done in layout
		s.Add("Case 1").Add(12,"Case 2").Add(13.5,"Case 3"); //chaining is possible ...
		s.Add("Something","Another case").DisableValue(12);  // ... but not mandatory
		s<<=12; //shorthand for s.SetData(12);
		s<<=THISBACK(change); // shorthand for s.WhenAction=THISBACK(change);
		// note the interesting overloading ;)
	}
};

GUI_APP_MAIN{
	guitest().Run();
}