[DUG] Is it a bug in latest version of Delphi?

[Karl Reynolds]

On Tue, Feb 16, 2010 at 4:43 PM, Kyley Harris <Kyley at harrissoftware.com> wrote:
> I'll add my cents..
> under Delphi 7, getlasterror returns error 1413 as Karl said.. under Delphi
> 2007 no errors whatsoever. whats clear is that Getlasterror is unlreliable
> in this situation as Microsoft says, because microsoft online help says the
> getlasterror value cannot be controlled depending on OS and device and only
> the -1 is reliable as an answer.

Except that -1 isn't reliable because, as already discussed, it could
be a valid data value. I would in fact expect the code returned to
vary by OS and device (and that's what RaiseLastOSError is for) but I
really didn't expect there to be an OS or device on which an
LB_GETITEMDATA request out of the range of the listbox wasn't an
error! Evidently I'm too trusting or something.

Under the circumstances, checking the bounds first seems necessary.

Cheers,
Karl