Graeme Geldenhuys wrote in a message to Mike Bilow:

 GG> Why, with all OS/2 programs that play Audio CD's I only get
 GG> the CD-ROM to EJECT, and I can't get it to close the CD-ROM
 GG> door again.

 GG> It only works one way....  All DOS programs can open and
 GG> close my CD-ROM door. 

I don't know.  OS/2 supports closing the tray with a call to DosDevIOCtl()
using category IOC_CDROM (0x80), function IOCD_CLOSE_TRAY (0x45).  What
OS2CDROM.DMD actually does in receipt of this IOCtl is issue a SCSI START
UNIT command to the device.  If your drive is not SCSI, then it is the
responsibility of the appropriate FLT driver to translate the command into
something specific to your hardware.
 
-- Mike


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