returning array of BSTRs from the COM component

[Raj Prathap]

Hi, I have a method which has to return the array of BSTRs. I'm giving the method here, please let me know if I'm doing anything wrong. HRESULT Login([in] BSTR UserName, [in] BSTR Password, int maxUsrCnt , [out]int *UsrCnt, [out, length_is(,*UsrCnt), size_is(,maxUsrCnt)] BSTR *LoggedUsers); the size of the array to be returned is not known at the time of calling. When I use this method, the first string is coming properly, but other strings are not coming. Please suggest an answer. Regards, Raja Pratap

[Mike Dimmick]

I'd avoid trying to mix BSTRs and custom marshalling. Instead, I'd go with a SAFEARRAY of BSTR. To return such an array to a VB client, I'm using:

HRESULT ExtendedHardwareType([out, retval] SAFEARRAY(BSTR)* psArray);

Stability. What an interesting concept. -- Chris Maunder

[Raj Prathap]

Thanks a ton Mike, working and its very easy to code.