实用的全屏切换(ZZ)

void CMainFrame::FullScreen()
{
 m_bFullScreen=!m_bFullScreen; 

 LONG style = ::GetWindowLong(this->m_hWnd,GWL_STYLE);
 if(m_bFullScreen)//
 {
  style &= ~(WS_DLGFRAME | WS_THICKFRAME);
  SetWindowLong(this->m_hWnd,GWL_STYLE, style);
  this->ShowWindow(SW_SHOWMAXIMIZED);
 //*　xp+sp2下可以不用
  CRect rect;
  this->GetWindowRect(&rect);
  ::SetWindowPos(this->m_hWnd,HWND_NOTOPMOST,rect.left-1, rect.top-1, rect.right-rect.left + 3, rect.bottom-rect.top + 3, SWP_FRAMECHANGED);
 //*/
 }
 else
 {
  style |= WS_DLGFRAME | WS_THICKFRAME;
  SetWindowLong(this->m_hWnd, GWL_STYLE, style);
  this->ShowWindow(SW_NORMAL);
 } 
}