See Also
 Important: |
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4/8/2010
This method acquires or releases a lock on the DMO. Call this method to keep the DMO serialized when performing multiple operations.
Syntax
HRESULT Lock( LONG bLock ); |
Parameters
- bLock
-
Value that specifies whether to acquire or release the lock. If the value is nonzero, a lock is acquired. If the value is zero, the lock is released.
Return Value
Returns an HRESULTvalue. Possible values include the following.
| Value | Description |
|---|---|
|
S_OK |
Success |
|
E_FAIL |
Failure |
Remarks
This method prevents other threads from calling methods on the DMO. If another thread calls a method on the DMO, the thread blocks until the lock is released.
Requirements
| Header | dmo.h |
| Library | Dmoguid.lib |
| Windows Embedded CE | Windows CE .NET 4.1 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |