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IMFSourceResolver::CancelObjectCreation method

Cancels an asynchronous request to create an object.

Syntax

C++


HRESULT CancelObjectCreation(
  [in] IUnknown **ppIUnknownCancelCookie
);

Parameters

ppIUnknownCancelCookie [in]: Pointer to the IUnknown interface that was returned in the ppIUnknownCancelCookie parameter of the IMFSourceResolver::BeginCreateObjectFromByteStream or IMFSourceResolver::BeginCreateObjectFromURL method.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

You can use this method to cancel a previous call to BeginCreateObjectFromByteStream or BeginCreateObjectFromURL. Because these methods are asynchronous, however, they might be completed before the operation can be canceled. Therefore, your callback might still be invoked after you call this method.

Note This method cannot be called remotely.

Requirements

Minimum supported client	Windows Vista [desktop apps \| Windows Store apps]
Minimum supported server	Windows Server 2008 [desktop apps \| Windows Store apps]
Header	Mfidl.h
Library	Mfuuid.lib