PIBIO_STORAGE_GET_DATA_FORMAT_FN callback function (winbio_adapter.h)
Called by the Windows Biometric Framework to retrieve format and version information used by the current database associated with the pipeline.
Syntax
PIBIO_STORAGE_GET_DATA_FORMAT_FN PibioStorageGetDataFormatFn;
HRESULT PibioStorageGetDataFormatFn(
[in, out] PWINBIO_PIPELINE Pipeline,
[out] PWINBIO_UUID Format,
[out] PWINBIO_VERSION Version
)
{...}
Parameters
[in, out] Pipeline
Pointer to a WINBIO_PIPELINE structure associated with the biometric unit performing the operation.
[out] Format
Pointer to a variable that receives a GUID that uniquely identifies the data format used by this storage adapter when it stores templates in the database.
[out] Version
Pointer to a WINBIO_VERSION structure that receives the version number of the storage adapter component.
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 |
---|---|
|
A mandatory pointer argument is NULL. |
|
The StorageContext member of the pipeline object is NULL. |
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 7 [desktop apps only] |
Minimum supported server | Windows Server 2008 R2 [desktop apps only] |
Target Platform | Windows |
Header | winbio_adapter.h (include Winbio_adapter.h) |