Suppressing save file option

The virtual function CDocument::SaveModified, which the framework calls when user
closes the document, displays this message box if the m_bModified flag is set to
TRUE. You can override this function to e.g. suppress this behaviour.

Cheers,
Christof

Christopher Sharp wrote:

> I would be very grateful for some help. I'm working on a program written
> by previous authors with which I need to make some changes. On starting
> up the program I want it to skip over asking the user for a filename, and
> found that in the code fragment:
>
> ...
> ASSERT_VALID(pDoc);
> CString nameFile=pDoc->GetPathName();
> if (nameFile.IsEmpty()) {
> CString newName=pDoc->GetTitle();
> if (!AfxGetApp()->DoPromptFileName(newName,
> AFX_IDS_SAVEFILE, OFN_HIDEREADONLY | OFN_PATHMUSTEXIST,
> FALSE, pDoc->GetDocTemplate()))
> return;
> nameFile = newName;
> pDoc->SetPathName(nameFile);
> }
> ...
>
> I can replace the statement "CString newName=pDoc->GetTitle()" by "CString
> newName="FILENAME.XXX", and comment out the following four lines (the 2nd
> and 3rd lines are of course really a continuation of the 1st), i.e. the condition
> and return statements, and the program works without prompting for a filename.
>
> However, on termination, I'm unable to suppress the box:
> _________________________________
> |Programname Windows Application |
> |(?) Save Changes to FILENAME.XXX |
> | |
> | [Yes] [No] [Cancel] |
> | - - |
> |_________________________________|
>
> and I have to click on the "No" button. In looking through a simple example
> in Visual C++ (in fact the "Scribble" example), whenever I close the program
> without saving the file I get this message, and even in the simple example
> I can't find a way of supressing it.
>
> Eventually I need to re-write large parts of the program, but for the time
> being I want to run the program without asking for a filename, then discard
> the dummy filename on completion without user intervention. No matter how
> the program is closed, I need to suppress the message box above. I would
> be very grateful of knowing a simple way of suppressing the message box no
> matter where the mouse is clicked to close the program.
>
> Christopher M. Sharp

Dear Christof,

Thanks for your very useful tip. However, being still quite new to C++/Visual
C++, I'm not very familiar as to how to override CDocument::SaveModified
to set m_bModified to FALSE.

In the interim I found that by adding to the code associated with one of
the buttons the function _exit(0) causes the program to terminate neatly.
If I try exit(0) (without the "_") an error message is generated.

I'm doing all this at the moment under Windows 3.11 and Visual C++1.52, as
the code was apparently written under that system, and currently won't work
with Windows 95/98 and Visual C++6.

Cheers, Christopher.

Christof Helm <c.helm@okay.net> wrote:
>The virtual function CDocument::SaveModified, which the framework calls
when user
>closes the document, displays this message box if the m_bModified flag is
set to
>TRUE. You can override this function to e.g. suppress this behaviour.
>
>Cheers,
>Christof