AudioCDgh is an AppleScript extension which gives Scriptors the ability to play mounted audio CDs. The CD player must use a driver which uses the same interface as the the Apple CD ROM driver. This extension should be compatible with scripts written for the GTQ Programming Suite's ╥Audio Cd╙ extension.
Installation:
Place the AudioScript gh file into "Scripting Additions" folder of the ╥Extensions╙ folder of the "System Folder". Remove the GTQ ╥Audio CD╙ scripting extension if previously installed.
Useage:
Use the ╥Open Dictionary...╙ command of the Script Editor to examine the contents of the AudioCDgh file. Look at the example scripts with the Script Editor.
Some CD setups require you to use the same value for both the left & right channels.
Non-English speaking users might be interested in knowing that the name for the CD Remote Prefs file is in a STR# resource file inside the extension.
Changes:
Since 1.1:
Ñ Worked around problem with Audio Setup 5.1.1 with some drives (CD 600), which would cause playback to halt mid-track for no apparent reason.
Ñ Should no longer be fooled by non-audio CD's mascarading as audio CD's.
Ñ Removed checking for the audio cd gestalt selector; should make it work with more drives.
Ñ Should now eject an empty CD tray when given an "eject cd" command.
Ñ Should now return a meaningful error number instead of generic -1708 (errAENotHandled).
Ñ Should work better with hybrid CDs, including returning the true magic number.
Since 1.0:
Ñ Added ╥magic number╙ command. This returns the same identification number used by the AppleCD Audio Player to differentiate between different audio disks.
Ñ Made extension work with quite a few more drives.
Ñ Added syntax ╥next track/last track╙ to the play command. This was done in order to support Remote Remote GH, my standalone player.
Ñ Added ╥number of drives╙ command. This returns the number of drives attached to your computer which the extension can control.
Ñ Fixed bug which could cause crashes if the ╥CD Remote Programs╙ file was damaged.
grhowes@kagi.com (a forwarding service which will get your mail to wherever I am.)
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Known Problems:
Some drivers do not allow you to set a stop point after beginning playback. There is no workaround for this, you will just have to allow playback to continue to the end of the disk.
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Legal Stuff:
AudioCDgh is free for noncommercial distribution. If you want to include this as a part of a package for which money is charged, please arrange terms with me first.
Warning:It is the users responsibility to guard against any damage that using this software might cause. Any damage is not my responsibility.
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Thanks to:
The writers of Tech Note DV 22 (Chris Brown, Neil Day & Brian Bechtel) where I got all the Apple CD Driver calls.
Thanks to the many people who tested this out and made suggestions which were incorporated into this extension's design.
Thanks to the University of North Dakota-Grand Forks for giving me a solid college education at a low cost to me.
Go Sioux.[The motto of the UND Law School?]
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Look for:
My Control Strip Audio CD player: Audio Strip GH.
My home page: http://www.xraylith.wisc.edu/~howes/
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Misc.:
Compiled using the DR/7 C compiler of Codewarrior Gold.
