使程序对话框全屏显示并隐藏边框的vc代码

int CMainFrame::OnCreate(LPCreateSTRUCT lpCreateStruct)
{
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
        return -1;

    SetMenu(NULL);//隐藏菜单
    ModifyStyle(WS_CAPTION,  0,  SWP_FRAMECHANGED);//  隐藏TitleBar
    ModifyStyle(WS_BORDER|WS_THICKFRAME|WS_DLGFRAME,SWP_DRAWFRAME);//去除边框

    return 0;
}

BOOL CMainFrame::PreCreateWindow(CreateSTRUCT& cs)
{
    if( !CFrameWnd::PreCreateWindow(cs) )
        return FALSE;
    // TODO: Modify the Window class or styles here by modiffying
    //  the CreateSTRUCT cs

    cs.style   = WS_POPUP;  
    
    cs.cy   =   ::GetSystemMetrics(SM_CYSCREEN);    
    cs.cx   =   ::GetSystemMetrics(SM_CXSCREEN);    
    cs.y   =   0;    
    cs.x   =   0;    


    return TRUE;
}