IMetaDataEmit::DefineEvent Method

Creates a definition for an event with the specified metadata signature, and gets a token to that event definition.

Syntax

HRESULT DefineEvent (
    [in]  mdTypeDef    td,
    [in]  LPCWSTR      szEvent,
    [in]  DWORD        dwEventFlags,
    [in]  mdToken      tkEventType,
    [in]  mdMethodDef  mdAddOn,
    [in]  mdMethodDef  mdRemoveOn,
    [in]  mdMethodDef  mdFire,
    [in]  mdMethodDef  rmdOtherMethods[],
    [out] mdEvent      *pmdEvent
);

Parameters

td [in] The token for the target class or interface. This is either a mdTypeDef or mdTypeDefNil token.

szEvent [in] The name of the event.

dwEventFlags [in] Event flags.

tkEventType [in] The token for the event class. This is a mdTypeDef, a mdTypeRef, or a mdTokenNil token.

mdAddOn [in] The method used to subscribe to the event, or null.

mdRemoveOn [in] The method used to unsubscribe to the event, or null.

mdFire [in] The method used (by a derived class) to raise the event.

rmdOtherMethods[] [in] An array of tokens for other methods associated with the event. The array is terminated with a mdMethodDefNil token.

pmdEvent [out] The metadata token assigned to the event.

Requirements

Platforms: See .NET supported operating systems.

Header: Cor.h

Library: CorGuids.lib

See also

• IMetaDataEmit Interface
• IMetaDataEmit2 Interface