Re: How to let a CFrameWnd based SDI application start in full screen?

From:

Leo <jchliustuff@gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 11 Jun 2010 13:36:08 -0700 (PDT)

Message-ID:

<9bb81b12-e2cd-447f-9861-28ba7bbd7b5b@t26g2000prt.googlegroups.com>

Also tried Joe's suggestion to find a solution for multimonitor case.
Generally it works great, but I have to do the following to hide the
disabled vertical scrollbar:

    // Remember this for OnGetMinMaxInfo()
    rectDesktop.right += ::GetSystemMetrics(SM_CXVSCROLL)
+ ::GetSystemMetrics(SM_CXFRAME);
    m_FullScreenWindowRect = rectDesktop;

I guess this should be OK,right? --- I am just using the width of
VSCROLL and FRAME, not the view.

The following is what I did:

// Public method to be called from InitInstance
void CMainFrame::SetFullScreen()
{
  RECT rectDesktop;
  WINDOWPLACEMENT wpNew;

  if (!m_bFullScreen)
  {
    //Adjust RECT to new size of window
    ::GetWindowRect(::GetDesktopWindow(), &rectDesktop);
    ::AdjustWindowRectEx(&rectDesktop, GetStyle(), TRUE,
GetExStyle());

    // Remember this for OnGetMinMaxInfo()
    rectDesktop.right += ::GetSystemMetrics(SM_CXVSCROLL)
+ ::GetSystemMetrics(SM_CXFRAME);
    m_FullScreenWindowRect = rectDesktop;

    GetWindowPlacement(&wpNew);
    wpNew.showCmd = SW_SHOWNORMAL;
    wpNew.rcNormalPosition = rectDesktop;

    m_bFullScreen = true;
  }

  SetWindowPlacement(&wpNew);
}

void CMainFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{
  if (m_bFullScreen)
  {
    lpMMI->ptMaxSize.y = m_FullScreenWindowRect.Height();
    lpMMI->ptMaxTrackSize.y = lpMMI->ptMaxSize.y;
    lpMMI->ptMaxSize.x = m_FullScreenWindowRect.Width();
    lpMMI->ptMaxTrackSize.x = lpMMI->ptMaxSize.x;
  }
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
.... cs.style = WS_MAXIMIZE;
    cs.dwExStyle &= ~WS_EX_CLIENTEDGE;
    cs.lpszClass = AfxRegisterWndClass(0);
    return TRUE;
}