Hugo Vanwoerkom wrote:
Kent West wrote:
All I want to do is to detect two keys, say the left- and right-shift
keys, or the < and > keys. For one key, a short "dit" audio tone
would be generated, and for the other key, a longer "dah" audio tone
would be generated. I need to bypass the keyboard buffer, so that
holding down the dit key for two seconds doesn't generate 30 dits; it
should produce dits while the key is held down, but once the key is
let up, the dits should immediately stop (after finishing the one
it's on).
IFAIK you've hit upon the one problem in cross-platform programming,
access to the speaker for variable duration (dit and dah).
I would use Qt and that makes keypresses easy to detect, but not sound
of variable duration, unless you don't mind recording a dit.wav and a
dah.wav and then the problem is easy again.
Ah, this is the info I needed. Basically what I'm hearing is that it
can't be done, easily, cross-platform, suitably for giving my fellow
hams a taste of programming.
Bummer.
Thanks for the info!
--
Kent
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