Cast _TCHAR* to BSTR

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Marius - 23 Mar 2004 00:01 GMT

I'm very new to this. I have a parameter coming into the command line arguments of a console application that is defined as "_TCHAR* argv[]". I want to convert the value to a "BSTR". I've tried "BSTR _Temp = SysAllocString(argv[1])". This does not work. I know I'm missing a lot, so any help would be appreciated

Thanks.

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Jianwei Sun - 23 Mar 2004 04:38 GMT

Hi,

If you use BSTR , why don't you choose CComBSTR. It's a wrapper on BSTR and
provides much more functionaliltiy.

And I think one of the constructor takes TCHAR, which I assume you
understand, in MBCS, it means char, and in UNICODE, it means WCHAR.

J.W.

> I'm very new to this. I have a parameter coming into the command line arguments of a console application that is defined as "_TCHAR* argv[]". I

want to convert the value to a "BSTR". I've tried "BSTR _Temp =
SysAllocString(argv[1])". This does not work. I know I'm missing a lot, so
any help would be appreciated.

> Thanks.

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Gary Chang - 23 Mar 2004 07:07 GMT

Hi Marius,

>I want to convert the value to a "BSTR". I've tried "BSTR _Temp = SysAllocString(argv[1])".

If your main(...) function is not a wmain(...) type, how about use the
following conversion directly:
BSTR _Temp = SysAllocString((OLECHAR *)argv[1]);

Thanks!

Best regards,

Gary Chang
Microsoft Online Partner Support

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Cast _TCHAR* to BSTR

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