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.NET Forum / Languages / Managed C++ / February 2007

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I think there is someting wrong with this code!

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Frank - 27 Jan 2007 16:42 GMT
I'm looking at a program I wrote long ago and I think there is much wrong -
even tho it works.
I know very little c and wish the learn.
Is BOOL correct with a dialog proc!
Are there returns that don't belong there?
Is it correct to sometimes return a BOOL and sometime an int?

int iReply;

iReply = DialogBox(hInstance, "DlgRetrieveSavedGame", hwndMain,
RetrieveSavedProc);

if ( iReply == IDYES )

...snip

BOOL CALLBACK RetrieveSavedProc( HWND hDlg, UINT uMessage, WPARAM wParam,
LPARAM lParam)

{

..snip

case WM_INITDIALOG:

...snip

return TRUE;

case IDCANCEL:

EndDialog( hDlg, IDCANCEL);

return TRUE;

default:

return FALSE;
Ben Voigt - 06 Feb 2007 17:22 GMT
> I'm looking at a program I wrote long ago and I think there is much
> wrong - even tho it works.
> I know very little c and wish the learn.
> Is BOOL correct with a dialog proc!

Yes.  I think the missing piece of your puzzle is DWL_MSGRESULT.  See
http://msdn2.microsoft.com/en-us/library/ms645469.aspx

> Are there returns that don't belong there?

No.

> Is it correct to sometimes return a BOOL and sometime an int?

No.

> int iReply;
>
> iReply = DialogBox(hInstance, "DlgRetrieveSavedGame", hwndMain,
> RetrieveSavedProc);

Ok, because DialogBox doesn't return the return value from the dialog
procedure, it returns the value passed to EndDialog.

> if ( iReply == IDYES )
>
[quoted text clipped - 22 lines]
>
> return FALSE;

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