#include <CtrlLib/CtrlLib.h>
using namespace Upp;

class App:public TopWindow {
	typedef App CLASSNAME;
	TabCtrl tabs;
	Button b1,b2,b3;
	Label c1,c2,c3;
public:
	App(){
		c1.SetLabel("Content of tab 1 ...");
		c2.SetLabel("Content of tab 2 ...");
		c3.SetLabel("Content of tab 3 ...");
		
		Add(tabs.VSizePos(30).HSizePos());
		tabs.Add(c1.SizePos(),"Tab 1");
		tabs.Add(c2.SizePos(),"Tab 2");
		tabs.Add(c3.SizePos(),"Tab 3");

		Add(b1.TopPos(5,20).LeftPos(  5,50));
		Add(b2.TopPos(5,20).LeftPos( 60,50));
		Add(b3.TopPos(5,20).LeftPos(115,50));
		b1.SetLabel("Set 1");
		b2.SetLabel("Set 2");
		b3.SetLabel("Set 3");
		
		b1<<=THISBACK1(SetTab,0);
		b2<<=THISBACK1(SetTab,1);
		b3<<=THISBACK1(SetTab,2);
	}
	void SetTab(int n){
		tabs.Set(n);
	}
};

GUI_APP_MAIN{
	App().Sizeable().Run();
}