Re: was: HELP!
Re: was: HELP!
- Subject: Re: was: HELP!
- From: Daniel Jalkut <email@hidden>
- Date: Thu, 31 Aug 2006 16:11:40 -0400
On Aug 31, 2006, at 12:52 PM, Jeff Moore wrote:
One other thing I'll throw out there: Back in OS 9, AppleScript
supported Scripting Additions which were bits of native code that
added capabilities to AppleScript, much like XCMDs did for
Hypercard or JNI does for Java. I definitely recall somebody, back
in the day, writing a Scripting Addition that interfaced to OMS and/
or the MIDI Manager. The best possible solution to this problem
would be a similar approach that connected AppleScript directly to
CoreMIDI, provided that AppleScript still has something like
Scripting Additions in it.
For the record, AppleScript never stopped supporting Scripting
Additions. You can install them on your system today in ~/Library/
ScriptingAdditions for example. Apple even continues to ship some of
their own in /System/Library/ScriptingAdditions.
The bigger problem with trying to do something like this in
AppleScript is that AppleScript is not good at blocking for user
input. Even when the "wires are hooked up," for instance when trying
to detect a regular old typing keyboard key press, scripters tend to
need to jump through all kinds of hoops to make a script "notice"
when it happens. This usually involves some crude combination of
sleeping and polling. So even if there were a "MIDI Interface"
scripting addition, it might be hard to achieve exactly what the
original poster is looking for.
On Aug 31, 2006, at 3:51 PM, djl wrote:
I know what needs to be done from the example code (Echo.cpp) but
don't have the experience/means to execute the changes as I don't
know enough about the frameworks and coding conventions to call the
required commands etc.
If I'm getting the original poster's gist, he wants to be able to
react with an arbitrary script when a keyboard note is pressed via
MIDI. If the "Echo.cpp" example does indeed do everything except the
"calling his script," then perhaps some combination of Echo.cpp with
the AppleScript handler execution described here:
http://developer.apple.com/qa/qa2001/qa1111.html
Would be a step in the right direction. I think instead of
attempting to make the script itself detect key presses in this case,
it would be better to aim for a standalone program that dispatches to
an AppleScript (or other script) in response to key presses.
Daniel
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| References: | |
| | >HELP! (From: djl <email@hidden>) |
| | >Re: HELP! (From: Steve Majewski <email@hidden>) |
| | >Re: HELP! (From: jbrave <email@hidden>) |
| | >was: HELP! (From: Steve Majewski <email@hidden>) |
| | >Re: was: HELP! (From: Jeff Moore <email@hidden>) |