C# - Step 5.6 ClassInterfaceType.AutoDual

ClassInterfaceType.AutoDual (Discouraged to use since it might produce versioning conflicts and compilation problems)

When you use ClassInterfaceType.AutoDual like below

[Guid("282902B4-5FB9-461d-9CD0-FE8DD851F979")]

[ClassInterface(ClassInterfaceType.AutoDual)]

[ProgId("SFTCSServer.MathCtrl")]

the following code will get generated on C++ client side with #import tlb file.

struct __declspec(uuid("282902b4-5fb9-461d-9cd0-fe8dd851f979"))

MathCtrl;

struct __declspec(uuid("7e8f71f8-8b44-3878-a180-1b9d5faeb06e"))

_MathCtrl : IDispatch

{

__declspec(property(get=GetToString))

_bstr_t ToString;

_bstr_t GetToString ( );

VARIANT_BOOL Equals (

const _variant_t & obj );

long GetHashCode ( );

_TypePtr GetType ( );

long AddNumbers (

long a,

long b );

long MuliplyNumbers (

long a,

long b );

// Raw methods provided by interface

virtual HRESULT __stdcall get_ToString (

/*[out,retval]*/ BSTR * pRetVal ) = 0;

virtual HRESULT __stdcall raw_Equals (

/*[in]*/ VARIANT obj,

/*[out,retval]*/ VARIANT_BOOL * pRetVal ) = 0;

virtual HRESULT __stdcall raw_GetHashCode (

/*[out,retval]*/ long * pRetVal ) = 0;

virtual HRESULT __stdcall raw_GetType (

/*[out,retval]*/ struct _Type * * pRetVal ) = 0;

virtual HRESULT __stdcall raw_AddNumbers (

/*[in]*/ long a,

/*[in]*/ long b,

/*[out,retval]*/ long * pRetVal ) = 0;

virtual HRESULT __stdcall raw_MuliplyNumbers (

/*[in]*/ long a,

/*[in]*/ long b,

/*[out,retval]*/ long * pRetVal ) = 0;

};

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