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.NET Forum / .NET Framework / Interop / June 2005Managed C++ equivalent for Foo([in] VARIANT_BOOL b, [out, retval] VARIANT *ptr)
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 >What must the declaration of the method look like? Probably Object *Foo(Boolean b) Mattias  SignatureMattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com Please reply only to the newsgroup. >> What must the declaration of the method look like? > > Probably > > Object *Foo(Boolean b) 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/cpcondefaultmarshalingforbo oleans.asp?frame=true. Boris
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