PIBIO_ENGINE_QUERY_EXTENDED_INFO_FN callback function (winbio_adapter.h)
Called by the Windows Biometric Framework to determine the capabilities and limitations of the biometric engine component.
Syntax
PIBIO_ENGINE_QUERY_EXTENDED_INFO_FN PibioEngineQueryExtendedInfoFn;
HRESULT PibioEngineQueryExtendedInfoFn(
[in, out] PWINBIO_PIPELINE Pipeline,
[out] PWINBIO_EXTENDED_ENGINE_INFO EngineInfo,
[in] SIZE_T EngineInfoSize
)
{...}
Parameters
[in, out] Pipeline
Pointer to the WINBIO_PIPELINE structure associated with the biometric unit performing the operation.
[out] EngineInfo
Pointer to the WINBIO_EXTENDED_ENGINE_INFO structure that contains the engine information returned by this function.
[in] EngineInfoSize
The specified size in bytes of the engine information.
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 and EngineInfo parameters cannot be NULL. |
|
The EngineInfoSize value is less than the size needed to return the engine information. |
Remarks
This method is called once during configuration of the biometric unit.
It will also be called if a client application uses the WinBioGetProperty function to query the value of the WINBIO_PROPERTY_EXTENDED_ENGINE_INFO property.
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) |