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  • winform程序中为无边框窗体手动添加窗体拖动代码

            Point oldMousePoint;//记录开始移动窗口前鼠标点下箭头的位置
            Point oldFormPoint;//记录开始移动窗口前窗体位置
            /// <summary>
            /// 窗体鼠标按下事件中初始化oldMousePoint,oldFormPoint
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void Form1_MouseDown(object sender, MouseEventArgs e)
            {
                if(e.Button ==MouseButtons .Left )
                {
                    oldMousePoint = new Point(Control.MousePosition.X, Control.MousePosition.Y);
                    oldFormPoint = this.Location;
                }
            }

            /// 窗体鼠标按下移动事件中分别算出鼠标箭头新的位置与旧位置在X,Y方向上的增量并分别加在原始旧窗口的X,Y方向上
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void Form1_MouseMove(object sender, MouseEventArgs e)
            {
                if (e.Button == MouseButtons.Left)//判断是否是鼠标左键按下
                {
                    int addPointX = Control.MousePosition.X - oldMousePoint.X;
                    int addPointY = Control.MousePosition.Y - oldMousePoint.Y;
                    this.Location = new Point(oldFormPoint.X + addPointX, oldFormPoint.Y + addPointY);
                }
            }
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  • 原文地址:https://www.cnblogs.com/luoweihui/p/3249052.html
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