Движение мыши по кругу

 [DllImport("User32.dll")]
       static extern void mouse_event(int dwFlags, int dx, int dy, int dwData, int dwExtraInfo);
       private const int MOUSEEVENTF_ABSOLUTE = 0x01;
       private const int MOUSEEVENTF_MOVE = 0x01;
       private const int MOUSEEVENTF_LEFTDOWN = 0x02;
       private const int MOUSEEVENTF_LEFTUP = 0x04;
       private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
       private const int MOUSEEVENTF_RIGHTUP = 0x10;

int X = Convert.ToInt32(textBox16.Text);
int Y = Convert.ToInt32(textBox17.Text);
mouse_event( MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);

int X = Control.MousePosition.X;
int Y = Control.MousePosition.Y;
mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);

    [DllImport("user32.dll")]
     static extern void mouse_event(int dwFlags, int dx, int dy, int dwData, int dwExtraInfo);
 
     [Flags]
     public enum MouseEventFlags
     {
         LEFTDOWN = 0x00000002,
         LEFTUP = 0x00000004,
         MIDDLEDOWN = 0x00000020,
         MIDDLEUP = 0x00000040,
         MOVE = 0x00000001,
         ABSOLUTE = 0x00008000,
         RIGHTDOWN = 0x00000008,
         RIGHTUP = 0x00000010
     }
 
     public static void LeftClick(int x, int y)
     {
         Cursor.Position = new System.Drawing.Point(x, y);
         mouse_event((int)(MouseEventFlags.LEFTDOWN), 0, 0, 0, 0);
         mouse_event((int)(MouseEventFlags.LEFTUP), 0, 0, 0, 0);
     }