// how to use a checkbox
// lp

(
	var w, amp = 0.0, box;
 
	w = GUIWindow.new("panel", Rect.newBy( 128, 64, 281, 90 ))
		.backColor_(rgb(220,174,59));
	box = CheckBoxView.new( w, Rect.newBy( 22, 17, 229, 41 ), "the universe is a 3-d torus!!!!", 0, 0, 1, 0, 'linear')
		.backColor_(rgb(81,167,176)).labelColor_(rgb(176,38,80));


	
	{
		SinOsc.ar(220, 0, ControlIn.kr(box) * 0.2);
	}.play;
	w.close;

)