c#實現隨滑鼠移動表單

  先聲明1private Point mousePoint;

 1        private void Form1_MouseMove(object sender, MouseEventArgs e)
 2        {            
 3            if (e.Button == MouseButtons.Left)
 4            {
 5                this.Top = Control.MousePosition.Y - mousePoint.Y;
 6                this.Left = Control.MousePosition.X - mousePoint.X;
 7            }
 8        }
 9
10        private void Form1_MouseDown(object sender, MouseEventArgs e)
11        {
12            if (e.Button == MouseButtons.Left)
13            {
14                this.mousePoint.X = e.X;
15                this.mousePoint.Y = e.Y;
16            }
17        }

如果表單有標題
Top -= SystemInformation.CaptionHeight;

如果有邊框
Top -= SystemInformation.FormBorderSize.Height
Left -= SystemInformation.FormBorderSize.Width

andyran