C# WinForm開發系列之自定義無邊框窗體(最大化，最小化，關閉，拉伸和移動的相關知識)
阿新 • • 發佈：2019-01-10
////重寫系統WndProc函式,使無邊框窗體可移動
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x0084:
base.WndProc(ref m);
Point vPoint = new Point((int)m.LParam & 0xFFFF,
(int)m.LParam >> 16 & 0xFFFF);
vPoint = PointToClient(vPoint);
if (vPoint.X <= 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPLEFT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMLEFT;
else m.Result = (IntPtr)Guying_HTLEFT;
else if (vPoint.X >= ClientSize.Width - 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPRIGHT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMRIGHT;
else m.Result = (IntPtr)Guying_HTRIGHT;
else if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOP;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOM;
break;
case 0x0201: //滑鼠左鍵按下的訊息
m.Msg = 0x00A1; //更改訊息為非客戶區按下滑鼠
m.LParam = IntPtr.Zero; //預設值
m.WParam = new IntPtr(2);//滑鼠放在標題欄內
base.WndProc(ref m);
break;
default:
base.WndProc(ref m);
break;
}
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x0084:
base.WndProc(ref m);
Point vPoint = new Point((int)m.LParam & 0xFFFF,
(int)m.LParam >> 16 & 0xFFFF);
vPoint = PointToClient(vPoint);
if (vPoint.X <= 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPLEFT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMLEFT;
else m.Result = (IntPtr)Guying_HTLEFT;
else if (vPoint.X >= ClientSize.Width - 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPRIGHT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMRIGHT;
else m.Result = (IntPtr)Guying_HTRIGHT;
else if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOP;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOM;
break;
case 0x0201: //滑鼠左鍵按下的訊息
m.Msg = 0x00A1; //更改訊息為非客戶區按下滑鼠
m.LParam = IntPtr.Zero; //預設值
m.WParam = new IntPtr(2);//滑鼠放在標題欄內
base.WndProc(ref m);
break;
default:
base.WndProc(ref m);
break;
}
}