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IMFWorkQueueServices::GetPlaftormWorkQueueMMCSSClass method (mfidl.h)

  • Article

Retrieves the Multimedia Class Scheduler Service (MMCSS) class for a specified platform work queue.

Syntax

HRESULT GetPlaftormWorkQueueMMCSSClass(
  [in]      DWORD  dwPlatformWorkQueueId,
  [out]     LPWSTR pwszClass,
  [in, out] DWORD  *pcchClass
);

Parameters

[in] dwPlatformWorkQueueId

Platform work queue to query. See IMFWorkQueueServices::BeginRegisterPlatformWorkQueueWithMMCSS.

[out] pwszClass

Pointer to a buffer that receives the name of the MMCSS class. This parameter can be NULL.

[in, out] pcchClass

On input, specifies the size of the pwszClass buffer, in characters. On output, receives the required size of the buffer, in characters. The size includes the terminating null character.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
 The method succeeded.
MF_E_BUFFERTOOSMALL
 The pwszClass buffer is too small to receive the class name.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header mfidl.h
Library Mfuuid.lib

See also

IMFWorkQueueServices