BoxDiagrams.DiagramGestureAnalyzer.IsDrag C# (CSharp) Method

		static bool IsDrag(IList<DragPoint> dragSeq)
		{
			Point<float> first = dragSeq[0].Point;
			Size ds = SystemInformation.DragSize;
			return dragSeq.Any(p =>
			{
				var delta = p.Point.Sub(first);
				return Math.Abs(delta.X) > ds.Width || Math.Abs(delta.Y) > ds.Height;
			});
		}