MFC窗口全屏方法

在MainFrame中更改窗口样式

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
    if( !CFrameWndEx::PreCreateWindow(cs) )
        return FALSE;
    // TODO: 在此处通过修改
    //  CREATESTRUCT cs 来修改窗口类或样式
    cs.style=WS_POPUPWINDOW;  //增加这句
    cs.hMenu=NULL;            //去掉菜单


    return TRUE;
}

在App.cpp代码中修改窗口显示为最大化

BOOL CMFCFullScreenApp::InitInstance()
{
	AfxEnableControlContainer();

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif


	SetRegistryKey(_T("Local AppWizard-Generated Applications"));

	LoadStdProfileSettings();  // Load standard INI file options (including MRU)



	CSingleDocTemplate* pDocTemplate;
	pDocTemplate = new CSingleDocTemplate(
		IDR_MAINFRAME,
		RUNTIME_CLASS(CMFCFullScreenDoc),
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window
		RUNTIME_CLASS(CMFCFullScreenView));
	AddDocTemplate(pDocTemplate);

	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);

	// Dispatch commands specified on the command line
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;

	// The one and only window has been initialized, so show and update it.
	m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED); //修改这句
	m_pMainWnd->UpdateWindow();

	return TRUE;
}