This method notifies an event.

  long EventCode,
  long EventParam1,
  long EventParam2


  • EventCode
    [in] Identifier of the event.
  • EventParam1
    [in] First event parameter.
  • EventParam2
    [in] Second event parameter.

Return Values

Returns an HRESULT value that depends on the implementation. HRESULT can be one of the following standard constants, or other values not listed.

Value Description
E_FAIL Failure.
E_POINTER Null pointer argument.
E_INVALIDARG Invalid argument.
E_NOTIMPL Method is not supported.
S_OK or NOERROR Success.


The event is queued but not delivered to the application on this thread. For a list of notification codes and event parameter values, see Event Notification Codes.


DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.

See Also

IMediaEventSink Interface

Last updated on Wednesday, April 13, 2005

© 2005 Microsoft Corporation. All rights reserved.