Does QB64 have this funcitonality?

[Cobalt]

is there anyway to monitor for any keyboard input via _KEYDOWN? or does it have to monitor for explicit key codes?
as in;  Nul=_KEYDOWN(20480)

or is there an option I'm missing like; Nul = _KEYDOWN(*)
where '*'=wildcard

something I could use it to processes an input handler when any key is held down,  When I use INKEY$ or _KEYHIT there is often a pause before the routine called by my _KEYDOWN line  does its thing.

I am wondering if I could pull this code off:

Code: QB64: [Select]

1. DO
2.  
3. IF _KEYDOWN THEN Input_Controls
4.  
5. LOOP UNTIL ExitFlag%% = -1
6.  
7. SUB Input_Controls
8. IF _KEYDOWN(20480) then do something
9. IF _KEYDOWN(18432) then do something else
10. ...
11. ...
12. ...
13. IF _KEYDOWN(65) then do something magical
14. ...
15. ...
16. ... so on and so on
17. END SUB
18.  

so my program doesn't waste a lot of time looking for any keys down unless there is one to find. And without the pause that seem inherent when using either _KEYHIT or INKEY$ to watch for it.

[FellippeHeitor]

I’d keep checking the required keys alone. No such burden on the processor.

[SMcNeill]

I’m thinking _DEVICES would be the easiest way to go to do this.

devices = _DEVICES
DO
  If _DEVICEINPUT = 1 THEN Input_Controls ‘keyboard input

LOOP

SUB Input_Controls
    IF _BUTTON(uparrowcode) THEN do something
    IF _BUTTON(leftarrowcode) THEN do something else
...
...
...
     IF _BUTTON(65) THEN do something magical with Capital “A”.
...
...
... so on and so on
END SUB