COM_INTERFACE_ENTRY2
Use this macro to disambiguate two branches of inheritance.
COM_INTERFACE_ENTRY2( x, x2 )
Параметры
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.
Заметки
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. For more information, see Implementing the IDispatch Interface.
See COM_INTERFACE_ENTRY Macros for remarks about COM map entries.
Пример
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()
};
Требования
Header: atlcom.h