Re: Need help to return string value from COM
Right. And once you actually put all the checking in, I bet your version
would not be much shorter than my version (where all the checking is
done inside CComBSTR::CopyTo).
Alexander Nickolov <email@example.com> wrote:
Ah, I omitted the argument checking for brevity...
"Igor Tandetnik" <firstname.lastname@example.org> wrote in message
"Alexander Nickolov" <email@example.com> wrote in message
Well, sorry, should have used SysAllocStringLen, I agree.
Though it does check and returns E_OUTOFMEMORY if the
input is not NULL.
It checks for val being NULL. It doesn't check for ret being NULL,
but immediately dereferences it as *ret. It is customary to return
E_POINTER when an [out] parameter's pointer is NULL.
With best wishes,
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