IMFAttributes::LockStore Method
Locks the attribute store so that no other thread can access it. If the attribute store is already locked by another thread, this method blocks until the other thread unlocks the object. After calling this method, call IMFAttributes::UnlockStore to unlock the object.
Syntax
HRESULT LockStore();
Parameter
Methode umfasst keine Parameter.
Rückgabewert
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Rückgabecode | Beschreibung |
|---|---|
| S_OK | The method succeeded. |
Hinweise
This method can cause a deadlock if a thread that calls LockStore waits on a thread that calls any other IMFAttributes methods on the same object.
This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:
- Windows XP mit Service Pack 2 (SP2) und höher.
- Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (Oktober 2006 Updaterollup für Windows XP Media Center Edition) installed.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfobjects.h (include Mfidl.h) |
Bibliothek |
Mfuuid.lib |