[StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            public int X;
            public int Y;
 
            public POINT(int x, int y)
            {
                this.X = x;
                this.Y = y;
            }
 
            public override string ToString
 
()
            {
                return ("X:" + X + ", Y:" + Y);
            }
        }
 
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool GetCursorPos(out POINT pt);

使用：

 POINT currentPosition = new POINT();
                GetCursorPos(out currentPosition
 
);
 
                System.Diagnostics.Debug.WriteLine("Current mouse point: " + currentPosition.ToString());
 

//轉為客戶區域座標
                Point relativePos = itemsControl.PointFromScreen(new Point(currentPosition.X, currentPosition.Y));