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From: wb1j+@andrew.cmu.edu (William M. Bumgarner)
Newsgroups: comp.sys.mac.programmer
Subject: OpenDriver, CloseDriver with HyperCard
Message-ID: <cXMehty00UgXI7skxh@andrew.cmu.edu>
Date: 24 Oct 88 04:03:05 GMT
Organization: Carnegie Mellon
Lines: 11

I'm writing XCMD/XFCN's to control an Apple CD-ROM player.  Currently, to
get the refNum, I call OpenDriver(".AppleCD", &refNum); at the beginning of
each XCMD/FCN... Do I need to do this, or is there a way to leave it open and
get the refNum at the beginning of the code unit w/o re-opening.  If I do
use the OpenDriver to do so (this may be advantageous in certain situations),
do I need to CloseDriver at the end of the unit?

thank you,

b.bum
wb1j+@andrew.cmu.edu