Get FilePath+FileName with Scanner Driver

Hi all , i want to add the FilePath+FileName to the Scanner Driver so that the User App will Print :
Current File Name :MyCurrentFile.txt * for example *

I tried with scanuk.h as follows :

typedef struct _SCANNER_NOTIFICATION {
 
    ULONG BytesToScan;
    ULONG Reserved;             // for quad-word alignement of the Contents structure
    UCHAR Contents[SCANNER_READ_BUFFER_SIZE];
    PWSTR FileName; // added to get filePath+FileName
} SCANNER_NOTIFICATION, *PSCANNER_NOTIFICATION;

i attached the Scanner driver + User Application
many thanks