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IMediaEvent::FreeEventParams (Windows Embedded CE 6.0)

  • Article

1/6/2010

This method frees resources associated with the parameters of an event.

Syntax

HRESULT FreeEventParams(
  long lEventCode,
  long lParam1,
  long lParam2
);

Parameters

  • lEventCode
    [in] Next event notification.
  • lParam1
    [in] First parameter of the event.
  • lParam2
    [in] Second parameter of the event.

Return Value

Returns an HRESULT value.

Remarks

Event parameters can be of type LONG or BSTR. If a BSTR is passed as an event, it will have been allocated by the task allocator and should be freed using this method. No reference-counted interfaces are passed to an application using IMediaEvent::GetEvent because these cannot be overridden by IMediaEvent::CancelDefaultHandling. Therefore, this method is not used to release interfaces.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later

See Also

Reference

IMediaEvent Interface