FilterDemoFramework.FilterView.TouchesBegan C# (CSharp) Method

		public override void TouchesBegan (NSSet touches, UIEvent evt)
		{
			base.TouchesBegan (touches, evt);

			var pointOfTouch = ((UITouch)touches.FirstOrDefault ()).LocationInView (this);
			pointOfTouch.Y += bottomMargin;

			if (graphLayer.Contains (pointOfTouch)) {
				touchDown = true;
				editPoint = pointOfTouch;

				UpdateFrequenciesAndResonance ();
			}
		}