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Par2: 16/32 bit Disk type routines
1998-12-20 -- Roberto Artigas Jr.
 
Heavenes - The Get the Disk Type Routine has been discussed in several
threads in C4/C5 for both 16 and 32 Bit. The Headers and Prototypes are
already available. This is a routine right out of my library. It has been
created out of code posted in this newgroup. It has been compiled and tested
under 16 bit and 32 bit.

Enjoy!
Roberto Artigas Jr

==========
sysDiskType          PROCEDURE  (xDriveName)          ! Declare Procedure
! Start of "Data Section"
! [Priority 5000]
DRIVE_UNKNOWN     EQUATE( 0 )
DRIVE_NO_ROOT_DIR EQUATE( 1 )
DRIVE_FIXED       EQUATE( 2 )
DRIVE_REMOVABLE   EQUATE( 3 )
DRIVE_REMOTE      EQUATE( 4 )
DRIVE_CDROM       EQUATE( 5 )
DRIVE_RAMDISK     EQUATE( 6 )

DriveName         CSTRING(4)
DriveType         SHORT(0)
DriveNumber       SHORT(0)
IRetVal           SHORT(0)
inregs            LIKE(REGS)
outregs           LIKE(REGS)
! End of "Data Section"
  CODE
! Start of "Processed Code"
! [Priority 5000]
  !Pass drive name to Cstring
  DriveName      = UPPER(xDriveName[1])
  DriveNumber    = INSTRING(DriveName[1], 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 1,
1)
  DriveName[2:3] = ':\'
  ! Get Drive Type
  ! Return string describing drive type.
  DriveType   = GetDriveType(DriveName)

  !
  ! This is 16Bit Code to determine if the DRIVE_REMOTE is a
  ! CDROM or a NETWORK drive. It checks for the existance of
  ! MSCDEX and then queries if the DriveNumber is a CD-ROM.
  !
  OMIT('***',_Width32_)
  IF (DriveType = DRIVE_REMOTE) THEN
    inregs.wordregs.ax = 1500H
    inregs.wordregs.bx = 0
    IRetVal = int86(2FH, inregs, outregs)
    IF (outregs.wordregs.bx <> 0) THEN
      inregs.wordregs.ax = 150BH
      inregs.wordregs.cx = DriveNumber - 1
      IRetVal = int86(2FH, inregs, outregs)
      IF (outregs.wordregs.ax <> 0) THEN
        DriveType = DRIVE_CDROM
      END
    END
  END
  ***

  CASE (DriveType)
  OF DRIVE_UNKNOWN
     RETURN('0 - UNKNOWN')
  OF DRIVE_NO_ROOT_DIR
     RETURN('1 - NOROOTDIR')
  OF DRIVE_FIXED
     RETURN('2 - FIXED')
  OF DRIVE_REMOVABLE
     RETURN('3 - REMOVABLE')
  OF Drive_Remote
     RETURN('4 - NETWORK')
  OF DRIVE_CDROM
     RETURN('5 - CDROM')
  OF DRIVE_RAMDISK
     RETURN('6 - RAMDISK')
  END
! End of "Processed Code"
==========



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