Truckle, Andrew J wrote:
> OK, I have done some further investigating. You can have multiple
> categories, as the name of the method implies. But these are combined into
> one string, sperated by commas. So that clarifies the matter.
>
> In my situation, I would only want to purge items that have just my category
> alone, so this should still be correct:
>
> pAppt->get_Categories(&bstrCat);
>
> // Can we delete it?
> if (bstrCat == "SoundRota")
> {
>
> If there are other categories associated with the item (in the text string)
> then I want to leave it well alone and assume it is not my item to be
> purged.
>
> However, is my text comparison safe? I don't see any == operator defined
> for this type of thing. It appears to work, but that could be by chance.
> Is there more appropriate code to use for comparing this CComBSTR against
> "SoundRota"?
Looking at
<http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_atl_ccombstr_class_members.asp>,
the CComBSTR class does seem to have the operator==() function defined,
so it should be safe to use. Of course, I'd suggest something like:
if (bstrCat == L"SoundRota") ...
so that the comparison takes place more efficiently (without any need
for string conversion before comparison) but any of the two forms should
work just fine.
--
Ehsan Akhgari
Farda Technology <http://www.farda-tech.com/>
Windows is a colorful clown suit for DOS.
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