个人代码库のC#可移动按钮“相关代码”

迈不过友情╰ 2021-12-21 02:59 280阅读 0赞

Technorati 标签: [C\#][C], [可移动代码][Link 1], [按钮][Link 2]

#region 可移动按钮“相关代码”
    
            Point mouse_offset;
            private void Button_MouseDown(object sender , MouseEventArgs e)
            {
                mouse_offset = e.Location; //将当前鼠标相对于“窗体”左上角的坐标赋值给mouse_offset
            }
    
            private void Button_MouseMove(object sender , MouseEventArgs e)
            {
    
                if ( e.Button == MouseButtons.Left )
                {
                    //将相对屏幕坐标转换为相对工作区的坐标。
                    int left = PointToClient(Control.MousePosition).X - mouse_offset.X;
                    int top = PointToClient(Control.MousePosition).Y - mouse_offset.Y;
                    
                    //左右可能越界
                    if(left<0)
                        left=0;
                    if ( left > this.Width )
                        left = this.Width - ( (Button)sender ).Width;
    
                    //上下可能越界
                    if ( top < 0 )
                        top = 0;
                    if ( top > this.Height )
                        top = this.Height - ( (Button)sender ).Height;
    
                    
                    ( (Button)sender ).Left = left;
                    ( (Button)sender ).Top = top;
                }
            }
    
            #endregion

转载于:https://www.cnblogs.com/AsionTang/archive/2010/11/20/1885705.html

[C]: http://technorati.com/tags/C%23
[Link 1]: http://technorati.com/tags/%E5%8F%AF%E7%A7%BB%E5%8A%A8%E4%BB%A3%E7%A0%81
[Link 2]: http://technorati.com/tags/%E6%8C%89%E9%92%AE