[comp.sys.mac.programmer] low level io using scsi

Eliot.Henry@samba.acs.unc.edu (BBS Account) (08/04/90)

Thanks for the information on pbread. I got it working. I have two more
questions:

   1) Can i get the volume ref num of the scsi hard drive and use that instead
       of having to deal with th SCSI manager?

   2) If not, what format is used to pass the SCSI port it's commands. Do you
       call several SCSICMD routines passing your command to each or do you
       send a linked list of the commands to SCSIcmd?

    One more:

	      3) anyone have some simple source for a thermometer indicator
                 ?   ie: a bar like the one displayed when copying disks
	         I have never programmed a control and would like an example. 


Thanks!