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Chapter 9 MIDI plug-ins 18 6
Use the Script Editor
The Script Editor is used to edit JavaScript code, enabling you to write your own MIDI plug-ins.
Plug-in creation is in real time, which means that you can change and test your plug-in functions
immediately. You can dene interface elements, such as sliders and menus, that are shown in
the Scripter plug-in window and can create the underlying logic and functions addressed by
these onscreen controls. Some examples of utilities you can create with the Scripter plug-in are
a chord strummer, a legato processor for stringed instruments, a harp glissando generator, or an
algorithmic composer.
Tip: View the supplied scripts in the Script Editor to see how they are constructed. You can
modify and re-use the code to change functions, or to create new processors.
See the Scripter API overview for Scripter API documentation and code examples.
Run Script button
Code Editor
Interactive Console
Script Editor parameters
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Run Script button: Click to evaluate the script and congure the plug-in and parameters.
Output, including errors, is shown in the Interactive Console when you click this button.
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Code Editor: Type JavaScript code in this area. The editor provides the following features:
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Syntax highlighting for JavaScript keywords and the available MIDI API (Application
Programming Interface).
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Live syntax checking, which highlights error lines immediately, making it easier to write
your scripts.
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Line numbers, which are useful for error checking because they are reported by line number
in the Interactive Console.
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Interactive Console: Displays debugging information and allows you to execute code on the
command prompt by typing after the prompt and pressing Return. Type clear and press
Return to clear the console.
Create and store a Scripter plug-in
1 Open the Scripter plug-in.
2 Click the Open Script In Editor button.
3 Type (or copy and paste existing) JavaScript code in the Code Editor.