OS/2 Warp FAQ List (20 Feb 95)

(3.16) Image Scanners

How can I use my scanner with OS/2 Warp?

There are three basic approaches to using your image scanner with OS/2 
Warp.  In decreasing order of attractiveness:

  1. Buy Native OS/2 Warp Software.  Real 32-bit OS/2 software gives you 
     the best results, integrates well with other OS/2 applications, and 
     works reliably.  OS/2 software packages for scanners are now 
     available, including Applause from Solution Technology (407-241-3210 
     or FAX 407-997-6518) and ImpOS2.  (Applause is available in versions 
     for Logitech and HP scanners.)

  2. Use Existing DOS/Windows Software (SCSI-based Scanner).  Many 
     scanners for PCs are attached to SCSI adapters (like those from 
     Adaptec) for which there are OS/2 .ADD device drivers.  You can use 
     your existing DOS or Windows scanner software if you follow these 
     steps:

     a. Load the OS/2 .ADD driver for your SCSI adapter.  OS/2 Warp will 
        do so automatically for Adaptec, BusLogic, DPT, IBM, and 
        MediaVision/Trantor SCSI adapters.  You need a BASEDEV=XYZ.ADD 
        line in your CONFIG.SYS file in order to load the correct driver, 
        where XYZ.ADD is the name of the OS/2 driver file for your SCSI 
        adapter.

     b. Configure OS/2 Warp for ASPI support.  Make sure that the 
        following two lines are in your CONFIG.SYS file:

        BASEDEV=OS2ASPI.DMD
        DEVICE=X:\OS2\MDOS\VASPI.SYS

        where X is replaced with the drive where OS/2 is installed.

     c. Load TWAIN device drivers in a DOS/Windows session and run the 
        software.  Your scanner or scanning software probably came with a 
        device driver for so-called TWAIN support which is designed to 
        work with ASPI (Adaptec SCSI Programming Interface).  Since you 
        have just configured OS/2 Warp to provide ASPI services to your 
        DOS and Windows sessions, you can now load device drivers (such as 
        TWAIN drivers) and software which uses ASPI.  (Since OS/2 Warp is 
        providing ASPI services, do not attempt to load DOS or Windows 
        SCSI or ASPI drivers.)  Consult the documentation accompanying 
        your scanner and/or scanning software for additional advice.

  3. Use Existing DOS/Windows Software (non-SCSI Scanner).  If your 
     scanner is attached to a proprietary adapter (often not a SCSI 
     adapter), you may use a specific DOS session under OS/2 Warp to load 
     the necessary device drivers (including a driver for the proprietary 
     adapter) and run your scanning software.

 Related information:

 (3.15) Dealers Specializing in OS/2 Warp 
 (5.6)  Performance Tuning 
 (5.9)  Specific DOS Sessions

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