Re: popup size = cview size

From:
"ScottMcP [MVP]" <scottmcp@mvps.org>
Newsgroups:
microsoft.public.vc.mfc
Date:
Mon, 29 Nov 2010 14:29:44 -0800 (PST)
Message-ID:
<42c01a57-108f-4c62-8788-9669566f3707@o23g2000prh.googlegroups.com>
On Nov 29, 4:42 pm, mfc <mfcp...@googlemail.com> wrote:

Hi,

is it possible to change the size of a modal popup dialog to the size
of the mainframe (cformview) ? Using a SDI application, I have a
button on my derrived class from the CFormView class. By clicking on
this button another dialog (popup) should be called

CTouchCalibrationDialog dlg;
dlg.DoModal();

Within this dialog I want to calibrate my touch display. I know one
solution would be to use ShowWindow(SHOW_MAXIMIZED) in the
OnInitDialog() method of this popup dialog. Is there another solution?
Working on the specific hardware / lcd monitor with the resolution
800x480 ShowWindow(Maximized) will be ok, but I often have to programm
some new things using a normal windows computer with a different
monitor and a much higher resolution.

To get always the correct width / height resolution 800x480 I`m using
the OnCreate() method of my cmainframe class. I`m not sure if these
commands are correct, but I get the desired resolution of 800x480.

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

        int nXpx = 533, nYpx =295;
        CRect rect(0, 0, nXpx, nYpx);
        MapDialogRect(m_hWnd, &rect);
        int nXdbu = rect.right;
        int nYdbu = rect.bottom;

                //m_height = 480 | m_width = 800; =

(member of my

cmainframe class)

        CRect m_rc( 0, 0, ((m_width * nXpx) / nXdbu), ((m_heigth =

* nYpx) /

nYdbu));
        MoveWindow(m_rc);
        return 0;

}

Are these values specific to my video card (nXpx, nYpx )? So that I`ve
to calculate these items to get always the desired resolution?

Moreover which steps do I have to include in the OnCreate() method of
my popup dialog to get the same resolution and size of this dialog as
for the cformview?

best regards
Hans


It's not clear what you are trying to do with MapDialogRect. It
doesn't seem relevant for CMainframe. You can call GetSystemMetrics
or SystemParametersInfo to get the screen size in pixels.

The dialog can be resized in OnInitDialog by calling MoveWindow. To
find out what size you want it just call GetWindowRect on either the
view or the mainframe, whichever you want.

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