学步园

在自定义控件或窗体代码中粘贴

const int HTLEFT = 10;<br /> const int HTRIGHT = 11;<br /> const int HTTOP = 12;<br /> const int HTTOPLEFT = 13;<br /> const int HTTOPRIGHT = 14;<br /> const int HTBOTTOM = 15;<br /> const int HTBOTTOMLEFT = 0x10;<br /> const int HTBOTTOMRIGHT = 17;</p> <p>protected override void WndProc(ref Message m)<br /> {<br /> switch (m.Msg)<br /> {<br /> case 0x0084:<br /> base.WndProc(ref m);<br /> Point vPoint = new Point((int)m.LParam & 0xFFFF,<br /> (int)m.LParam >> 16 & 0xFFFF);<br /> vPoint = PointToClient(vPoint);<br /> if (vPoint.X <= 5)<br /> if (vPoint.Y <= 5)<br /> m.Result = (IntPtr)HTTOPLEFT;<br /> else if (vPoint.Y >= ClientSize.Height - 5)<br /> m.Result = (IntPtr)HTBOTTOMLEFT;<br /> else m.Result = (IntPtr)HTLEFT;<br /> else if (vPoint.X >= ClientSize.Width - 5)<br /> if (vPoint.Y <= 5)<br /> m.Result = (IntPtr)HTTOPRIGHT;<br /> else if (vPoint.Y >= ClientSize.Height - 5)<br /> m.Result = (IntPtr)HTBOTTOMRIGHT;<br /> else m.Result = (IntPtr)HTRIGHT;<br /> else if (vPoint.Y <= 5)<br /> m.Result = (IntPtr)HTTOP;<br /> else if (vPoint.Y >= ClientSize.Height - 5)<br /> m.Result = (IntPtr)HTBOTTOM;<br /> break;<br /> case 0x0201://鼠标左键按下的消息<br /> m.Msg = 0x00A1;//更改消息为非客户区按下鼠标<br /> m.LParam = IntPtr.Zero;//默认值<br /> m.WParam = new IntPtr(2);//鼠标放在标题栏内<br /> base.WndProc(ref m);<br /> break;<br /> default:<br /> base.WndProc(ref m);<br /> break;<br /> }<br /> }

原文来自：http://www.cnblogs.com/jiangshui/archive/2010/01/11/1644393.html

怕回头找不到了。转载过来。 ^_^