I have an interface in Managed C++ where one of the methods is this one:

Object *Foo(Boolean *b)

When I use tlbexp to check the IDL the line above is converted to:

HRESULT Foo([in, out] VARIANT_BOOL *b, [out, retval] VARIANT *ptr)

However I need:

HRESULT Foo([in] VARIANT_BOOL b, [out, retval] VARIANT *ptr)

What must the declaration of the method look like?

Thanks in advance,
Boris

[quoted text, click to view]

Probably

Object *Foo(Boolean b)



Mattias

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Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com

[quoted text, click to view]

Which is converted to this IDL:

HRESULT Foo([in] unsigned char b, [out, retval] VARIANT *ptr)

Any other idea?

Boris

I got it:

Object *Foo([MarshalAsAttribute(UnmanagedType::VariantBool)]Boolean b)

See
http://msdn.microsoft.com/library/en-us/cpguide/html/cpcondefaultmarshalingforbooleans.asp?frame=true.

Boris