ITypeInfo::GetRefTypeOfImplType method

If a type description describes a COM class, it retrieves the type description of the implemented interface types. For an interface, GetRefTypeOfImplType returns the type information for inherited interfaces, if any exist.

Syntax

HRESULT GetRefTypeOfImplType(
  UINT     index,
  HREFTYPE *pRefType
);

Parameters

index

The index of the implemented type whose handle is returned. The valid range is 0 to the cImplTypes field in the TYPEATTR structure.

pRefType

A handle for the implemented interface (if any). This handle can be passed to ITypeInfo::GetRefTypeInfo to get the type description.

Return Value

This method can return one of these values.

Return code Description
S_OK
Success.
E_INVALIDARG
One or more of the arguments is not valid.
TYPE_E_ELEMENTNOTFOUND
Passed index is outside the range 0 to 1 less than the number of function descriptions.

Remarks

If the TKIND_DISPATCH type description is for a dual interface, the TKIND_INTERFACE type description can be obtained by calling GetRefTypeOfImplType with an indexof –1, and by passing the returned pRefTypehandle to GetRefTypeInfo to retrieve the type information.

Requirements

   
Target Platform Windows
Header oaidl.h

See Also

ITypeInfo