My aim is :- Pass C# object as a parameter of unmanaged Dll(vc++ 6.0)
method . with in the unmaaged dll methedod construct similar C++ class instance .
vice versa from dll method argument VARIANT result has to be converted to C# object
For this , I tried
Marshal.GetNati veVariantForObj ect(s, p);
or
Marshal.Structu reToPtr(segInfo , ptrValue, false);
and
Marshal.GetObje ctForNativeVari ant(res)
But I got the error as like
An invalid VARIANT was detected during a conversion from an unmanaged VARIANT to a managed object. Passing invalid VARIANTs to the CLR can cause unexpected exceptions, corruption or data loss.
Source Files are attached
TestOne.zip is the VC++(6.0) unmanaged dll
TestACallFromDl l.zip is C# application
Let me help as early as possible ....
Thanks In advance .
Regards,
Dileep S
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