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The UnlockForProcess method releases the lock that was imposed on the APO by the LockForProcess method.
Syntax
HRESULT UnlockForProcess();
Return value
The UnlockForProcess method returns a value of S_OK if the call completed successfully. If the APO was already unlocked when the call was made, the method returns a value of APOERR_ALREADY_UNLOCKED.
Remarks
The UnlockForProcess method places the APO in a mode that makes configuration changes possible. These changes include Add, Remove, and Swap of the input and output connections that are attached to the APO.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available Windows Vista and later versions of the Windows operating system. |
| Target Platform | Universal |
| Header | audioenginebaseapo.h |
| Library | Audioenginebaseapo.idl |
| IRQL | All levels |