struct App : public TopWindow
{
	typedef App CLASSNAME;
	Button ok;
	GridCtrl grid;
	void AddToGrid();
	
	App(){
	grid.HSizePosZ(10,10);
	Sizeable();
        Add(grid.SizePos().HSizePos(50,50).VSizePosZ(50,50));
        grid.SummaryRow();
        grid.AddColumn( "Name").DoSum("%d");
        grid.AddColumn( "Surname").DoSum("%d");
	grid.ColorRows(); 
		
	ok.WhenPush = THISBACK(AddToGrid);  
	ok.SetLabel(t_("OK")).HCenterPosZ(76, -84).BottomPosZ(8, 32);
	Add(ok);
	}
};

void App::AddToGrid(){
		grid.Clear();
		for(int l=0; l<3; l++){
			grid.Add(l, 1);	
		}
		Beep(1000,100);
}

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