PIBIO_ENGINE_PIPELINE_CLEANUP_FN callback function (winbio_adapter.h)
Called by the Windows Biometric Framework to give the Engine Adapter the chance to perform any cleanup that requires help from the Storage Adapter.
Syntax
PIBIO_ENGINE_PIPELINE_CLEANUP_FN PibioEnginePipelineCleanupFn;
HRESULT PibioEnginePipelineCleanupFn(
[in, out] PWINBIO_PIPELINE Pipeline
)
{...}
Parameters
[in, out] Pipeline
Pointer to the WINBIO_PIPELINE structure associated with the biometric unit performing the operation.
Return value
If the function succeeds, it returns S_OK. If the function fails, it must return one of the following HRESULT values to indicate the error.
Return code | Description |
---|---|
|
The Pipeline parameter cannot be NULL. |
Remarks
This method is called once, when a biometric unit is being torn down.
The Engine Adapter should return S_OK if it doesn’t need to perform any cleanup at this point.
This method executes in the context of an arbitrary RPC server thread.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 10 [desktop apps only] |
Minimum supported server | Windows Server 2016 [desktop apps only] |
Target Platform | Windows |
Header | winbio_adapter.h (include Winbio_adapter.h) |