win32程序任务栏图标隐藏问题，

自己写的win32程序，如何隐藏任务栏图标，但是程序窗口还在，程序已在托盘中显示

http://www.cnblogs.com/94cool/archive/2012/10/23/2736334.html

 DWORD dwExStyle = GetWindowLong(hWnd, GWL_STYLE);

   dwExStyle &= ~(WS_VISIBLE);

   dwExStyle |= WS_EX_TOOLWINDOW;   

   dwExStyle &= ~(WS_EX_APPWINDOW);

   SetWindowLong(hWnd, GWL_STYLE, dwExStyle);

   ShowWindow(hWnd, SW_SHOW);

   //ShowWindow(hWnd, SW_HIDE);

   UpdateWindow(hWnd);