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COM_INTERFACE_ENTRY2
Use this macro to disambiguate two branches of inheritance.
COM_INTERFACE_ENTRY2( x, x2 )
Parameters
x
[in] The name of an interface you want to expose from your object.x2
[in] The name of the inheritance branch from which x is exposed.
Remarks
For example, if you derive your class object from two dual interfaces, you expose IDispatch using COM_INTERFACE_ENTRY2 since IDispatch can be obtained from either one of the interfaces.
See COM_INTERFACE_ENTRY Macros for remarks about COM map entries.
Example
class ATL_NO_VTABLE CEntry2Example :
public CEntry2ExampleBase, // CEntry2ExampleBase derives from IDispatch
public IDispatchImpl<IEntry2Example, &IID_IEntry2Example, &LIBID_NVC_ATL_WindowingLib, /*wMajor =*/ 1, /*wMinor =*/ 0>,
public CComCoClass<CEntry2Example, &CLSID_Entry2Example>
{
public:
CEntry2Example()
{
}
BEGIN_COM_MAP(CEntry2Example)
COM_INTERFACE_ENTRY(IEntry2Example)
COM_INTERFACE_ENTRY2(IDispatch, IEntry2Example)
END_COM_MAP()
};
Requirements
Header: atlcom.h