怎样实现全屏显示（vc）

源代码如下：

void CMainFrame::SetFullScreenMode(BOOL bFullMode) // 全屏显示
{
 if(bFullMode == m_bFullScreenMode)// 当前状态已经是全屏或非全屏状态，直接返回
  return;
 //m_bToolBarWasVisible = (m_wndToolBar.IsWindowVisible() != 0);
 //m_wndToolBar.ShowWindow(!bFullMode);
 m_bStatisBarWasVisible = (m_wndStatusBar.IsWindowVisible() != 0);
 m_wndStatusBar.ShowWindow(!bFullMode);
 // 保存窗口位置
 if(bFullMode)
  GetWindowRect(&m_MainRect);
 else 
  MoveWindow(m_MainRect);  
 
 // 移走或添加主窗口的标题
 LONG style = ::GetWindowLong(m_hWnd,GWL_STYLE);
 if(bFullMode)
  style &= ~WS_CAPTION;
 else
  style |= WS_CAPTION;
 ::SetWindowLong(m_hWnd,GWL_STYLE,style);
 int cxScreen = GetSystemMetrics(SM_CXSCREEN);
 int cyScreen = GetSystemMetrics(SM_CYSCREEN);
 
 if(bFullMode)
 { //设置窗口位置
  SetWindowPos(NULL,-2,-2,cxScreen,cyScreen,SWP_NOZORDER);
  // 保存最初的菜单，并设置菜单为 NULL
  ASSERT(m_OrgMenu.GetSafeHmenu() == NULL);
  CMenu *pOldMenu = GetMenu();
  m_OrgMenu.Attach(pOldMenu->Detach());
  SetMenu((CMenu*)NULL);

  // 右侧控制面板
  m_wndMyBar1.ShowWindow(SW_HIDE);
  m_TabCtrl.ShowWindow(SW_HIDE);

 }
 else
 {
  ASSERT(m_OrgMenu.GetSafeHmenu() != NULL);
  SetMenu(&m_OrgMenu);
  m_OrgMenu.Detach();

  // 右侧控制面板
  m_wndMyBar1.ShowWindow(SW_SHOW);
  m_TabCtrl.ShowWindow(SW_SHOW);
 }

 // 窗口所有控件重排
 RecalcLayout();

 m_bFullScreenMode = bFullMode;
}

在View中调用

void CNiKoView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
 // TODO: Add your message handler code here and/or call default
 if(nChar == 'F' || nChar == 'f' || nChar == VK_ESCAPE)
 {// 全屏显示控制
  CMainFrame *pFrame = (CMainFrame*)AfxGetMainWnd();
  if(nChar == 'F' || nChar == 'f' )
   pFrame->SetFullScreenMode(TRUE);
  else
   pFrame->SetFullScreenMode(FALSE);
 }

 CView::OnChar(nChar, nRepCnt, nFlags);
}