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IMetaDataImport::GetInterfaceImplProps Method

Gets a pointer to the metadata tokens for the Type that implements the specified method, and for the interface that declares that method.

Syntax

HRESULT GetInterfaceImplProps (
   [in]  mdInterfaceImpl        iiImpl,
   [out] mdTypeDef              *pClass,
   [out] mdToken                *ptkIface
);

Parameters

iiImpl [in] The metadata token representing the method to return the class and interface tokens for.

pClass [out] The metadata token representing the class that implements the method.

ptkIface [out] The metadata token representing the interface that defines the implemented method.

Remarks

You obtain the value for iImpl by calling the EnumInterfaceImpls method.

For example, suppose that a class has an mdTypeDef token value of 0x02000007 and that it implements three interfaces whose types have tokens:

  • 0x02000003 (TypeDef)
  • 0x0100000A (TypeRef)
  • 0x0200001C (TypeDef)

Conceptually, this information is stored into an interface implementation table as:

Row number Class token Interface token
4
5 02000007 02000003
6 02000007 0100000A
7
8 02000007 0200001C

Recall, the token is a 4-byte value:

  • The lower 3 bytes hold the row number, or RID.
  • The upper byte holds the token type – 0x09 for mdtInterfaceImpl.

GetInterfaceImplProps returns the information held in the row whose token you provide in the iImpl argument.

Requirements

Platforms: See .NET supported operating systems.

Header: Cor.h

Library: CorGuids.lib

See also