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//先定义一个点:
Point p = new Point(20, 30);
Rectangle rec = this.control1.Bounds; //再算出矩形大小,每个控件元素都有的属性
if(rec.Contains(p)) //再判断是否在否在矩形内
{
//...
}
private void frmMakeStatusString_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
//矩形框的左和上坐标
this.lblLocation.Left = e.X;
this.lblLocation.Top = e.Y;
}
int x = lblLocation.Left;
int y = lblLocation.Top;
}