[SOLVED] testing my keyboard

linuxUser247 · 04-07-2020, 12:27 AM

hello, my program does not receive function keys from F13 and above. Maybe some process is capturing the keys or something.

First I want to know if the key sent by the keyboard is actually recognized as F13.

I did this with `xinput test 12` and the result is:

key press 191

I cannot remember how to check which character it is...

linuxUser247 · 04-07-2020, 12:35 AM

I used xev which is more helpful, here is the result:

Code:

KeyRelease event, serial 37, synthetic NO, window 0xb400001,
    root 0x168, subw 0x0, time 7929582, (224,720), root:(2145,772),
    state 0x10, keycode 70 (keysym 0xffc1, F4), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0xb400001,
    root 0x168, subw 0x0, time 7938566, (224,720), root:(2145,772),
    state 0x10, keycode 191 (keysym 0x1008ff81, XF86Tools), same_screen YES,
    XKeysymToKeycode returns keycode: 179
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

as you can see I pressed F4 in the first event.

in the second event instead of F13 it indicates XF86Tools

linuxUser247 · 04-07-2020, 12:47 AM

so I checked with xmodmap and it turns out none of my function keys above F12 are defined.

The keycodes are in use, however, and I am not sure if I need them.

Can I simply add them without affecting the current bindings?

For example, changing

keycode 179 = XF86Tools NoSymbol XF86Tools

into

keycode 179 = F13 F13 F13 F13 F13 F13 XF86Tools

or maybe

keycode 179 = F13 F13 F13 F13 XF86Tools F13 XF86Tools

?