IMFSourceResolver::CancelObjectCreation Method
Cancels an asynchronous request to create an object.
Syntax
HRESULT CancelObjectCreation(
[in] IUnknown **ppIUnknownCancelCookie
);
Parameter
- ppIUnknownCancelCookie [in]
Pointer to the IUnknown interface that was returned in the ppIUnknownCancelCookie parameter of the IMFSourceResolver::BeginCreateObjectFromByteStream or IMFSourceResolver::BeginCreateObjectFromURL method.
Rückgabewert
Ist Methode erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.
Hinweise
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.
Hinweis This method cannot be called remotely.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfuuid.lib |