1 private bool m_isMouseDown = false;
2 private Point m_mousePos = new Point();
3 protected override void OnMouseDown(MouseEventArgs e)
4 {
5 base.OnMouseDown(e);
6 m_mousePos = Cursor.Position;
7 m_isMouseDown = true;
8 }
9
10 protected override void OnMouseUp(MouseEventArgs e)
11 {
12 base.OnMouseUp(e);
13 m_isMouseDown = false;
14 }
15
16 protected override void OnMouseMove(MouseEventArgs e)
17 {
18 base.OnMouseMove(e);
19 if (m_isMouseDown)
20 {
21 Point tempPos = Cursor.Position;
22 this.Location = new Point(Location.X + (tempPos.X - m_mousePos.X), Location.Y + (tempPos.Y - m_mousePos.Y));
23 m_mousePos = Cursor.Position;
24 }
25 }
