Convert string to BSTR

[pdk5]

I have a function

func(BSTR * path)
{

// From path paramter I use the path. 

//Now I generate some lets say list of names separated by newline

string output = "Bob\n Rob \n Lilly \n";


// Now client wants the path to be modified with the output

	SysFreeString(*path);
	*path= SysAllocStringByteLen(output.c_str(), output.size());

}

Is the last two lines correct. Somehow testing doesnot seems ok !

[VictorN]

Could you use _bstr_t Class rather than the plain BSTR?
Then you would not care about SysFreeString/SysAllocString...

[pdk5]

Thanks a lot Victor, but this is client interface and I cannot change

[pdk5]

can some windows experts help me with this please.

[Arjay]

Thanks a lot Victor, but this is client interface and I cannot change

Sure, the interface can't change but you can do what you like internally.

func(BSTR* path)
{
  _bstr_t myPath(path);

 // myPath has access to all of _bstr_t methods. happy, happy, happy
}

[pdk5]

Thanks I tried to convert the string into wstring. Then copied that back to parameter to be passed back to interface. This now worked.
May be I;ll try your suggestion also ..Thankyou again for commenting and giving inputs