"Joseph M. Newcomer" wrote:
This is not a good description. If DoModal "fails", it will return 0. If it succeeds,
you should see a dialog box.
Sorry for my imprecise language. What shall we call it when an API
invocation does not do what the documentation purports it to do? You are
right, it did not 'fail' in the sense that it did not return a value
indicating failure. It never returned, period. However, I apparently have no
File Open dialog. At least none that I can find.
extensions and plug-ins to be loaded into your application's context.
You should try to remove some of the shell extension. Does anybody know
Presumably you are going to fill in all those parameters at some point, because you are
using the defaults, so there is no reason to provide default parameters to the
constructor.
As suggested by another poster, I have also tried invoking it as CFileDialog
fileOpenBox(TRUE);, with no change in behavior.
I see no function f() here.
True. Sorry again for my imprecision. f() here is meant to be shorthand for
'the function we are discussing'. More specifically, f() was meant to denote
CFileDialog::DoModal().
Accordingly, the symptons could be described as follows:
Something deep within the call tree of CFileDialog::DoModal() is (apparently)
failing, causing the dialog to never be displayed, and the
CFileDialog::DoModal() never to return.
What version of VS are you using,
Help>About has the following to say:
Visual Studio 2005 Professional Edition
Microsoft Visual Studio 2005
Version 8.0.50727.762 (SP.050727-7600)
what platform SDK,
Quite frankly, I don't know how to check this. Is the SDK version not
inferred from the VS version?
what OS?
System Information says:
Microsoft Wondows XP Professional
5.1.2600 Service Pack 2 Build 2600
Not enough information here
to even make a good guess. There are some known issues with using older > Platform SDKs on
modern operating systems because the size of the m_ofn member changed, but they have
typically led to unpleasant crashes, usually due to access faults or heap corruption.
How old is old? I guess I just assumed that VS installed whatever it needed
to build working code. I have certainly used this particular MFC API call in
other projects, built on this machine, using this exact installation of VS.
Unless Windows Update changed something germane out from underneath me.
Is there any more info that may be of use in diagnosing the problem? I was
kind of hoping someone could point to some glaring error in the parameter
list of the DoModal call, but I guess nothing there looks obviously amiss?