Problems with KEY obj

Reply to Problems with KEY obj on Wed, 13 Jul 2005 14:02:42 GMT

efils — Wed, 13 Jul 2005 14:02:42 GMT

why some keys (using 'key' obj)
do not respect limits like >,< etc..

i've done a patch where I needed that
values beyond some limits should not
to be considerated.it works for every
key values but for CTRL,SPACE BAR and
some others

Reply to Problems with KEY obj on Wed, 13 Jul 2005 18:08:27 GMT

hardoff — Wed, 13 Jul 2005 18:08:27 GMT

not sure about the space bar,

but ctrl ,alt, shift ...etc are modifiers, pretty sure they don't have a value unless you use them in combination with other keys. (ctrl a...etc)

Reply to Problems with KEY obj on Thu, 14 Jul 2005 07:59:28 GMT

hardoff — Thu, 14 Jul 2005 07:59:28 GMT

i also have problems with the key object...because i want an event to continue while i am pressign a certain key, and then to stop when the key is released....but the key and keyup objects seem to be buggy for long keypresses, at least on macintosh, anyway.

Reply to Problems with KEY obj on Thu, 14 Jul 2005 10:01:53 GMT

syntax the nerd — Thu, 14 Jul 2005 10:01:53 GMT

actually that's not a bug, it's a feature. at bios level, from where the keypresses are routed to the operating system, there are two parameters that define the delay before a key is being "retriggered", and the rate at which it is doing so. some bios's let you change these values, but you can have a solution from within pd which won't alter all the other programmes' behaviour: (yeah, ascii pd sucks)

[key] [keyup]
|\ |
| [clear( |
| \ /
| \ / <- both connections head for the left inlet of the pipe
| [pipe 60]
| | \ <- and both connections come from the left outlet
| [set 0( \
| / \
[change] \
| \
| \
key out keyup out <- both retrigger free

of course this will add a latency to keyup events and swallow keypresses coming faster than 16 Hz, but that's the way i would've done it without changing bios or hardcoding customized key objects. try increasing the pipe delay if there's still retriggers for you.
somehow i think there's an even simpler solution to this....

greetings
stn

Reply to Problems with KEY obj on Thu, 14 Jul 2005 10:08:00 GMT

syntax the nerd — Thu, 14 Jul 2005 10:08:00 GMT

arg. this forum eats up multiple spaces!
i'll just put it in words again: connect a [keyup] to a [pipe 60], what comes out of the pipe will later become your new, retrigger-free keyup. now connect a [key] element to a [clear( message heading into the pipe. also, connecect this [key] to a [change] and connect the pipe outlet to a [set 0( message which heads into the same [change]. the outlet of the change is your retrigger-free key function.

hope you figure out with help of the "graphic"

stn

Reply to Problems with KEY obj on Thu, 14 Jul 2005 13:22:27 GMT

hardoff — Thu, 14 Jul 2005 13:22:27 GMT

ah thanks syntax....that would work too....

but i did it the hard way and changed my system prefs.