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

• IMetaDataImport Interface
• IMetaDataImport2 Interface