c# - 如何使鼠标卡住 c#

Question

我希望鼠标在按下时卡住(不能移动)谢谢

Answer 1

我用了一个tableLayoutPanel供大家引用(记得把代码实现到前面的Control):

选项 1:重置鼠标位置:

定义两个全局变量:

bool mousemove = true;
Point currentp = new Point(0, 0);

更新 mousemove 的 Handel MouseDown 事件:

private void tableLayoutPanel1_MouseDown(object sender, MouseEventArgs e)
{
    int offsetX = (sender as Control).Location.X + this.Location.X;
    int offsetY = (sender as Control).Location.Y + this.Location.Y;
    mousemove = false;
    currentp = new Point(e.X+offsetX, e.Y+offsetY); //or just use Cursor.Position
}

Handel MouseMove 禁用/启用移动:

 private void tableLayoutPanel1_MouseMove(object sender, MouseEventArgs e)
    {
        if (!mousemove)
        {
            this.Cursor = new Cursor(Cursor.Current.Handle);
            Cursor.Position = currentp;
        }
    }

在 Mouseup 时重置 mousemove

private void tableLayoutPanel1_MouseUp(object sender, MouseEventArgs e)
    {
        mousemove = true;
    } 

OPTION2:限制鼠标裁剪矩形:

在按下 MouseDown 时限制它:

private void tableLayoutPanel1_MouseDown(object sender, MouseEventArgs e)
        {            
            this.Cursor = new Cursor(Cursor.Current.Handle);
            Cursor.Position = Cursor.Position;
            Cursor.Clip = new Rectangle(Cursor.Position, new Size(0, 0));
        }

在 MouseUp 之后释放它:

 private void tableLayoutPanel1_MouseUp(object sender, MouseEventArgs e)
    {
        this.Cursor = new Cursor(Cursor.Current.Handle);
        Cursor.Position = Cursor.Position;
        Cursor.Clip = Screen.PrimaryScreen.Bounds;
    }