C++ dll to Call in VB

[jannathali]

Hai, I have a C++ dll,in which one of its function returns a pointer to the string array. How i can receive it in VB. Thanks in Advance

[sunlin7]

c++ code: __declspec(dllexport)BSTR WINAPI RetMsg(void) { wchar_t szMsg[] = L"Hello, world!"; BSTR pMsg = SysAllocStringLen(szMsg, wcslen(szMsg) + 1); return pMsg; } __declspec(dllexport)ULONG WINAPI FreeMsg(BSTR pMsg) { return SysFreeString(pMsg); } VB code: Private Declare Function RetMsg Lib "msg.dll" Alias "RetMsg" () As String

[KarstenK]

work with BSTR. Best is CComBSTR class, it help to ferget annoying stuff. :-O

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