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IMFWorkQueueServices::BeginUnregisterPlatformWorkQueueWithMMCSS method (mfidl.h)

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Unregisters a platform work queue from a Multimedia Class Scheduler Service (MMCSS) task.

Syntax

HRESULT BeginUnregisterPlatformWorkQueueWithMMCSS(
  [in] DWORD            dwPlatformWorkQueue,
  [in] IMFAsyncCallback *pCallback,
  [in] IUnknown         *pState
);

Parameters

[in] dwPlatformWorkQueue

Platform work queue to register with MMCSS. See IMFWorkQueueServices::BeginRegisterPlatformWorkQueueWithMMCSS.

[in] pCallback

Pointer to the IMFAsyncCallback interface of a callback object. The caller must implement this interface.

[in] pState

Pointer to the IUnknown interface of a state object, defined by the caller. This parameter can be NULL. You can use this object to hold state information. The object is returned to the caller when the callback is invoked.

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.

Remarks

This method is asynchronous. When the operation completes, the callback object's IMFAsyncCallback::Invoke method is called. At that point, the application should call IMFWorkQueueServices::EndUnregisterPlatformWorkQueueWithMMCSS to complete the asynchronous request.

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