C#中无边框窗体移动的简单实例

首先建一个windows应用程序
将form1的 formborderstyle属性设置为noe

point mouseoff;//鼠标移动位置变量
        bool leftflag;//标记是否为左键
        private void form1_mousedown(object sender, mouseeventargs e)
        {
            if (e.button == mousebuttons.left)
            {
                mouseoff = new point(-e.x, -e.y); //得到变量的值
                leftflag = true;                  //点击左键按下时标注为true;
            }
        }

        private void form1_mousemove(object sender, mouseeventargs e)
        {
            if (leftflag)
            {
                point mouseset = control.mouseposition;
                mouseset.offset(mouseoff.x, mouseoff.y);  //设置移动后的位置
                location = mouseset;
            }
        }

        private void form1_mouseup(object sender, mouseeventargs e)
        {
            if (leftflag)
            {
                leftflag = false;//释放鼠标后标注为false;
            }
        }