先声明
1
private 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 }
如果窗体有标题
Top -= SystemInformation.CaptionHeight;
如果有边框
Top -= SystemInformation.FormBorderSize.Height
Left -= SystemInformation.FormBorderSize.Width
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