USB Exported Control API > BS2_GetUserDatabaseInfoFromDirWithKey
[+2.8.2] Get full user information (number of users, number of cards, number of fingerprints, number of faces) from the data extracted by USB.
#include "BS_API.h" int BS2_GetUserDatabaseInfoFromDirWithKey(void* context, const char* szDir, uint32_t* numUsers, uint32_t* numCards, uint32_t* numFingers, uint32_t* numFaces, IsAcceptableUserID ptrIsAcceptableUserID, const BS2EncryptKey* key);
context : ContextszDir : Data Storage PathnumUsers : Total number of usersnumCards : Total number of cardsnumFingers : Total number of fingerprintsnumFaces : Total number of facesptrIsAcceptableUserID : Callback function to ask the server if it is the user ID to allowkey : Encryption key and the key value specified by BS2_SetDataEncryptKey.
Note
The uidsObjs variable must return memory to the system after using via the BS2_ReleaseObject function.
Returns BS_SDK_SUCCESS if performed successfully, or a corresponding error code if an error occurs.