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flat assembler > Examples and Tutorials > Conversion of MIDI input into keystrokes

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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7310
Location: Kraków, Poland
This is a research project that I wrote 10 years ago for the founder of flatassembler.net website. Since I got permission to reuse it for other purposes, I decided to release it as an example (though poorly commented).

This program detects chords pressed on MIDI keyboard and converts them into sequences of keystrokes. The mapping is defined with a simple text file, with definitions like:
Code:
0x4790,0x4490 = 0x54,0x48,0x45    
The left side defines the MIDI codes for the keys that have to be pressed simultaneously (a chord), and the right side defines the sequence of virtual keystrokes that will be generated. It is possible to convert key release, too - the default mapping which comes with the package translates many of the individual MIDI keys to a single keystrokes, and it includes Ctrl and Shift, which have to handle both the press and release events.

When the chord that is pressed on the MIDI keyboard is a superset of more than one chord defined in he mapping, the program uses the largest one. And no MIDI code can participate in more than one chord at the time.

The package also contains two additional simple tools that were written to help in preparing the mapping files. One of them captures the MIDI codes, and the other one captures the keystrokes, displaying their codes in a form that can be copied directly into the .SKL mapping file


Description: StormKey v1.0
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Filename: StormKey.zip
Filesize: 19.91 KB
Downloaded: 168 Time(s)

Post 26 Nov 2013, 08:01
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tom tobias



Joined: 09 Sep 2003
Posts: 1320
Location: usa
interesting...
Post 26 Nov 2013, 12:20
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