Is there a way to interact with keyboard LEDs (for Caps/Scroll/Num
Lock) in Python? I'd like to achieve an effect similar to the *NIX
command "setleds -L", but I'm not sure where to start, but I figured
someone out there would have an idea or maybe experience with something
similar. Thanks very much in advance for your help!
Chris
4  3397 
On Friday 08 December 2006 23:18, Chris Lasher wrote:
Is there a way to interact with keyboard LEDs (for Caps/Scroll/Num
Lock) in Python? I'd like to achieve an effect similar to the *NIX
command "setleds -L", but I'm not sure where to start, but I figured
someone out there would have an idea or maybe experience with something
similar. Thanks very much in advance for your help!
Chris
Spur of the moment answer: call setleds program from within your program
better answer (fox X11): http://python-xlib.sourceforge.net/d...n-xlib_16.html
Take a look at get_keyboard_co ntrol() and change_keyboard _control(). As far as
knowing how to properly invoke them, I have no idea, maybe you could google
for examples or take a look at the setleds source?
- Jonathan
Jonathan Curran wrote:
Spur of the moment answer: call setleds program from within your program
better answer (fox X11):
http://python-xlib.sourceforge.net/d...n-xlib_16.html
Take a look at get_keyboard_co ntrol() and change_keyboard _control(). As far as
knowing how to properly invoke them, I have no idea, maybe you could google
for examples or take a look at the setleds source?
- Jonathan
Thanks for your reply, Jonathan. The difficulty with setleds is that
only works from a virtual console (e.g., tty, CTRL+ALT+F1 through F6,
etc.), not from a terminal emulator inside X (e.g., pts, Xterm, Gnome
Terminal, Konsole, etc.), which is the environment where I'd like to
interact with the LEDs. The xlib package looks promising, though. One
thing I don't understand is the 32-bit mask. How does this represent
the LED states? I profess my ignorance.
Thanks!
Chris
"Chris Lasher" <ch**********@g mail.comwrote:
8<-------------------------------
interact with the LEDs. The xlib package looks promising, though. One
thing I don't understand is the 32-bit mask. How does this represent
the LED states? I profess my ignorance.
not sure if this will be of any use - but when you talk to the keyboard, then on
the wire, the bits are in a byte as follows:
LEDS EQU GBITS1 ;LEDS FOR OUTPUT TO KEYBOARD
SCROLL_LOCK_BIT EQU LEDS.0 ; - least significant bit
NUM_LOCK_BIT EQU LEDS.1 ; - bit 1
CAPS_LOCK_BIT EQU LEDS.2 ; - bit 2
They are set following a mode indicator command to the keyboard which is 0xED
I just happen to know this because we made a funny keyboard wedge box once.
Haven't a clue about how xlib achieves this, though...
- Hendrik This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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