dMZX Forums: Most "KEY" Counters No Longer Work At All -> MegaZeux Bugs -> Tracker

Note: I split this off from the linked Related Issue because this seems to be its own issue.

Issue: "KEY_CODE", "KEY_PRESSED", and "KEYn" seemingly no longer function.
Versions Affected: v2.90 onward
Introduced in Version: v2.90
Operating System: Windows, DOS (2.93), likely others

Further Details
From what I've observed, It seems like "KEY_PRESSED", "KEY_CODE", and "KEYn" counters are pretty much non-functional in versions 2.90 and higher? No amount of anything I did would get them to change from a value of 0 despite the fact that I was able to get values for all pressed keys in the Debug Window. The only thing I can think of is that, perhaps, there's some sort of "enable code" I need to, uh, enable before they respond? Seems like an odd, undocumented change, if so.

I couldn't get "KEY_PRESSEDn" to work in versions 2.84c or 2.93, either, but it's plausible that I simply don't know how that one works. (I tried both 71 and 278 for "Page Up" with no luck.)

Related Issues

• Certain Keys No Longer Change "KEY" Counters #840

This post has been edited by Joseph Collins: 11 February 2024 - 08:04 AM

There are a large number of games and utilities that rely on these counters which show no noticeable issues in the cited versions. 278/71 are the MegaZeux/PC-XT keycodes for HOME, not Page Up. If you were checking KEY(71) or KEY_PRESSED(278) and pressing any key other than Home, that would explain why those counters didn't appear to work for you.

Here is a short Robotic program that latches onto the values of KEY_CODE and KEY_PRESSED and displays them. On my end, the values it displays are identical to the debug window (even in the DOS build of 2.93).

: "l"
if "key_pressed" != 0 then "#p"
if "key_code" != 0 then "#c"
* "~a&c& ~d&p&"
wait for 1
goto "l"
: "#p"
set "p" to "key_pressed"
goto "#return"
: "#c"
set "c" to "key_code"
goto "#return"

edit: KEY_PRESSEDn (but not KEY_PRESSED) is a new counter in 2.93, so that wouldn't work in older versions.

Disregard. The issue was a misunderstanding on my part. As stated above, MegaZeux never had access to the Home, End, Page Up, or Page Down buttons:

Joseph Collins, on 07 February 2024 - 10:40 PM, said:

Furthermore, the emulation of version 2.xx does not replicate this behavior. So, while that is a completely different bug / oversight, this "bug" isn't a bug.

Thank you.

This post has been edited by Joseph Collins: 08 February 2024 - 04:27 AM