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Icetips Article



Par2: Hard drive serial number
1999-02-15 -- Ken Wagner
 
Here's the code to get the Serial Number. The Hex conversion is included.
Windows however ignores leading zero's in the 4 + 4 display of the volume
serial number. You can see this if you use My Computer and then right click on
the the drive icon and select disk information.

I trust this gets you closer to your goal. See code below.

Best regards for a flawless compile,


PROGRAM

  !"After global includes"

MAP

    COMPILE('***',_WIDTH32_)
    MODULE('WIN32.LIB')
GetVolumeInformationA(*CSTRING,*CSTRING,LONG,*ULONG,*ULONG,*ULONG,*CSTRING,ULONG),BOOL,PASCAL,RAW
    END

END  ***

LOC:RootPathName         CSTRING(255)
LOC:VolNameBuffer        CSTRING(255)
LOC:VolNameSize          LONG
LOC:VolSerialNr          ULONG
LOC:MaxFCL               ULONG
LOC:MaxFCF               ULONG
LOC:FileSystem           CSTRING(255)
LOC:FileSystemSize       ULONG
LOC:Entries              ULONG
LOC:SerialNo             STRING(8)
LOC:Result               BYTE
H                        LONG
S                        BYTE
N                        SHORT

CODE

     LOC:RootPathName = 'C:\'
     LOC:VolNameSize  = SIZE(LOC:VolNameBuffer)
     LOC:FileSystemSize = SIZE(LOC:FileSystem)
     CLEAR(LOC:VolSerialNr)
     X# = GetVolumeInformationA(LOC:RootPathName, |
                             LOC:VolNameBuffer, |
                             LOC:VolNameSize, |
                             LOC:VolSerialNr, |
                             LOC:MaxFCL, |
                             LOC:MaxFCF, |
                             LOC:FileSystem, |
                             LOC:FileSystemSize)


     DO DecToHex

     MESSAGE('X#: ' & X# & '|' & |
           LOC:RootPathName & '|' & |
           LOC:VolNameBuffer & '|' & |
           LOC:VolNameSize & '|' & |
           LOC:SerialNo & '|' & |
           LOC:MaxFCL & '|' & |
           LOC:MaxFCF & '|' & |
           LOC:FileSystem & '|' & |
           LOC:FileSystemSize)




DecToHex  ROUTINE

  N = 1
  LOOP
    H = (16 ^ N)
    IF H > LOC:VolSerialNr THEN BREAK.
    N += 1
  END
  N -= 1

  LOOP
    LOC:Result = INT(LOC:VolSerialNr / (16^N))
    CASE LOC:Result
      OF 0
        LOC:SerialNo[8-N] = '0'
      OF 1
        LOC:SerialNo[8-N] = '1'
      OF 2
        LOC:SerialNo[8-N] = '2'
      OF 3
        LOC:SerialNo[8-N] = '3'
      OF 4
        LOC:SerialNo[8-N] = '4'
      OF 5
        LOC:SerialNo[8-N] = '5'
      OF 6
        LOC:SerialNo[8-N] = '6'
      OF 7
        LOC:SerialNo[8-N] = '7'
      OF 8
        LOC:SerialNo[8-N] = '8'
      OF 9
        LOC:SerialNo[8-N] = '9'
      OF 10
        LOC:SerialNo[8-N] = 'A'
      OF 11
        LOC:SerialNo[8-N] = 'B'
      OF 12
        LOC:SerialNo[8-N] = 'C'
      OF 13
        LOC:SerialNo[8-N] = 'D'
      OF 14
        LOC:SerialNo[8-N] = 'E'
      OF 15
        LOC:SerialNo[8-N] = 'F'
    END
    IF N < 0 THEN BREAK.
    IF N > 0
      LOC:VolSerialNr = LOC:VolSerialNr - (LOC:Result*(16^N))
    END
    N -= 1
  END



Printed November 23, 2024, 2:06 am
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