Cancels the current request to create an object.
- pIUnknownCancelCookie [in]
The pointer that was returned in the the ppIUnknownCancelCookie parameter of the IMFMediaEngineExtension::BeginCreateObject method.
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
This method attempts to cancel a previous call to BeginCreateObject. Because that method is asynchronous, however, it might complete before the operation can be canceled.
Minimum supported client
|Windows 8 [desktop apps | Windows Store apps]|
Minimum supported server
|Windows Server 2012 [desktop apps | Windows Store apps]|