Position of child windows. - C / C++ / MFC Discussion Boards

DirectX 8

10-Dec-00 3:36

Does anyone know where to find a good
tutorial for DirectX 8 programming?

Thanks in advance,
Gregor Schuster

Re: DirectX 8

Christian Graus10-Dec-00 10:42

Christian Graus

10-Dec-00 10:42

Download the documentation with DX8. It is commonly accepted that there are no great books on DX, and that the best source of info is the online documentation. I personally used the Microsoft DX and D3D books as a starting point, but remember, they relate to DX5.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

How do I disable Alt-F4

9-Dec-00 22:54

How do I disable Alt-F4 so that my app doesn't exit on this shortcut?

Re: How do I disable Alt-F4

Christian Skovdal Andersen10-Dec-00 2:02

Christian Skovdal Andersen

10-Dec-00 2:02

If you don't want to close at all handle the WM_CLOSE message and do nothing.

If it is just ALT+F4, try overriding PretranslateMessage() (Assuming you're using MFC)

Christian Skovdal Andersen

Re: How can deal with PreTranslateMessage?

10-Dec-00 21:56

How can deal with PreTranslateMessage to
disable Alt+F4?

Re: How do I disable Alt-F4

James Millson10-Dec-00 2:12

James Millson

10-Dec-00 2:12

Take a small, blunt knife (for example a butter knife) and lift the key 'caps' for 'Alt' and 'F4' out of the keyboard. Then pour quick setting resin in the spaces and leave for five minutes.

Now you have disabled Alt+f4 Smile | :)

. You may like to add this method to your readme file so any end users know as well.

Re: How do I disable Alt-F4

Leo Davidson11-Dec-00 2:11

Leo Davidson

11-Dec-00 2:11

You can disable closing of the window by disabling the close item in the system menu. (This also disables the close gadget and Alt-F4).

if ((WS_CAPTION|WS_SYSMENU) & GetStyle())
{
CMenu *pSysMenu = GetSystemMenu(FALSE);

if (NULL != pSysMenu)
{
pSysMenu->EnableMenuItem(SC_CLOSE, MF_BYCOMMAND | MF_GRAYED);
}
}

Position of child windows.

9-Dec-00 20:25

I wish to get the coordinates for the upper left corner of a control derived from a control class, for example CButton. The coordinates should be relative to the uppper left corner of the parents client area.

I've seen that one possible way is to use GetWindowRect, but then I must know the size of the non-client area. How can I get that, or is there a better way to do this?

Re: Position of child windows.

Tim Deveaux10-Dec-00 4:53

Tim Deveaux

10-Dec-00 4:53

You might look at the CWnd::ScreenToClient() method:

void CNewFormView::OnButton2() 
{
    RECT buttonRect;
 
    CButton* cb = (CButton*)GetDlgItem(IDC_BUTTON1);
    
    // this gets the rectangle in screen coordinates...
    cb->GetWindowRect(&buttonRect);
 
    // this normalizes to client coordinates, since we're calling from the parent...
    ScreenToClient(&buttonRect);
 	
}

Re: Position of child windows.

10-Dec-00 4:58

That was a smart one. I had already solved it, but this cuts my code with 4 rows.

Cannot access HELP (SEARCH) in Visual C++ 6.0

9-Dec-00 17:10

I installed Microsoft Visual C++ 6.0 but when I click HELP then SEARCH I get following message "MSDN collection not found. Please re-install MSDN". What can I do?

Re: Cannot access HELP (SEARCH) in Visual C++ 6.0

Anders Molin10-Dec-00 0:42

Anders Molin

10-Dec-00 0:42

Try to go into Tools - Options, and select the tab "Help System", in there you can select what MSDN Collection you want to use...

If that does not work, reinstall MSDN...

- Anders

How to save a CView screenshot as BITMAP?

9-Dec-00 15:00

Imagine we have a CView object and we want to save the screen of the window it handles to a bitmap file or print it out. Any suggestions?

Re: How to save a CView screenshot as BITMAP?

Christian Graus9-Dec-00 21:15

Christian Graus

9-Dec-00 21:15

CWindowDC dc(m_hWnd) will give you a DC that contains your current window. Now CBitmap* pScreen = dc.GetCurrentBitmap(); will give you a CBitmap to play with to your hearts content. There is no point building a DIB, the image is clearly already devive dependant.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

changing the print dialog box

9-Dec-00 4:23

When I go to File/Print, a print dialog box pops up. At the bottom, the user can change the paper size options. How can I reduce the paper size options to just letter (8 1/2 x 11) and legal (8 1/2 x 14) size paper? How can I eliminate all the other paper size options?

Please, any response any one can give me will be greatly appreciated.

Sincerely,
danYELL

Re: changing the print dialog box

Tim Deveaux9-Dec-00 15:45

Tim Deveaux

9-Dec-00 15:45

Doing this will be difficult, since you'd have to either disable print setup or chase all the proprietary printer setup dialogs.

Here's an option that traps the wonky paper size before printing starts, and localizes things in OnPreparePrinting:

/////////////////////////////////////////////////////////////////////////////
// CSDITestView printing
 
BOOL CSDITestView::OnPreparePrinting(CPrintInfo* pInfo)
{
 
    BOOL retval;
 
    while(1) {
        // instead of returning this result directly, lets see if we can warn the user
       retval = DoPreparePrinting(pInfo);
 
        // pInfo now has the info we need...
        if(retval) { // user didn't cancel out of the setup
            DEVMODE *dm = pInfo->m_pPD->GetDevMode();
            if(dm->dmPaperSize != DMPAPER_LETTER && dm->dmPaperSize != DMPAPER_LEGAL) {
                if(IDCANCEL == MessageBox("Paper size is yada yada...", "Prepare printing...", MB_OKCANCEL)) {
                    retval = FALSE;
                    break;
                }
                else {
                    continue;
                }
            }
            else {
                break;
            }
        }
        else {
            break;
        }
    }
    return retval;
}

You don't necessarily have to send the user back to the print setup, as this does. Not very friendly, really.

Check the docs for DEVMODE for lots of other good things you can check.

BTW this is not to say you can't alter the print dialog - if what you want to do is add something, rather than disable something, check out Al Stevens article in the December Dr. Dobbs for one approach.

What can i do if I want to draw my own frame on a tool bar?

Mr.Nodman9-Dec-00 1:11

Mr.Nodman

9-Dec-00 1:11

I want to draw a frame on my toolbar, but unfor. i found maybe CMainFrame has drawn a line on top of the bar that what i don't like it.

What can i do if i dont want the line?
i want MY frame instead of it.

Please talk to me.

return file name from GetOpenFileName?

8-Dec-00 22:44

question of beginner

i tried a lot to return full path and the name of the file
to put that in a CString ms
this is the code
{
OPENFILENAME selfile = { 0 };
selfile.lStructSize = sizeof selfile;
selfile.hwndOwner = m_hWnd;
selfile.lpstrFilter = "All Files (*.bin)\0*.bin\0";
selfile.lpfnHook = CResizeTestDlg::HookProc;
selfile.Flags = OFN_ENABLEHOOK | OFN_EXPLORER;
selfile.lpstrTitle="Select File ";
GetOpenFileName( &selfile );

CString ms;
//ms.GetBuffer(of.lpstrFile);
AfxMessageBox(ms);
}

Re: return file name from GetOpenFileName?

Michael Dunn9-Dec-00 6:50

Michael Dunn

9-Dec-00 6:50

Before the GetOpenFileName() call, do:

CString strPath;
selfile.lpstrFile = strPath.GetBuffer( MAX_PATH );
selfile.nMaxFile = MAX_PATH;

Don't forget to call strPath.ReleaseBuffer() before using any CString methods on strPath.

--Mike--
http://home.inreach.com/mdunn/
"Didn't I tell you? I've got a brain the size of a planet."
--Marvin the paranoid android

Dialog

8-Dec-00 22:33

When I open a new Dialog my using the "m_object.Modal". If I ask the user to enter something in a edit box, and I saved what he typed by using a varible "CString word." After the user closed the Dialog box and now is in the main Dialog, and I want to know is it possible to get what is stored in the word variable?

Re: Dialog

Christian Graus9-Dec-00 9:46

Christian Graus

9-Dec-00 9:46

It's in m_object.word. You can access all the variables this way, but remember you can't get data from variables attached to edit boxes & the like, because they don't exist anymore.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

Re: Dialog

Matt Philmon9-Dec-00 9:54

Matt Philmon

9-Dec-00 9:54

Sure. Either make the members public or create access functions.

CMyDialog dlg;
CString strWord;

if (dlg.DoModal() == IDOK)
{
strWord = dlg.word;
}

MFC without a dialog or view?

8-Dec-00 14:08

How do I create an MFC application without a dialog or a view? When I put my code in InitInstance it exits and I don't want to use an infinate loop due to cpu. What is the correct way to do this?

Re: MFC without a dialog or view?

Erik Funkenbusch8-Dec-00 18:03

Erik Funkenbusch

8-Dec-00 18:03

I'm not sure I follow you. Why do you want ot use MFC if you're not going to open windows? If you just want to use the MFC utility classes (CString, CList, etc..) you can do so without creating a CWinApp derived class.

Re: MFC without a dialog or view?

8-Dec-00 19:23

Yeah MFC or no MFC.. but how would I keep my program running in the background without an infinate loop?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.