Running from BeOS, I experiment the following dosbox keyboard nasties:
1) AltGr-sifted keys work, but they add a "1" to the output
(I.E. in an spanish linuxlike keyboard, "\" is in ALTGR-key-below-esc , but pressing ALTGR-4 to make "\" produces "1\")
2) Of course, I can get vital keystrokes, like "\", using the usa map, as I do when I start a computer from a floppy: "\" is inSHIFT-key_right_of_ L, and so.
3) F3 (copy command line) is implemented, but left, right,F1,F2,F4 DON'T work at command line. So if you want to modify starting part of command line you have to write it over.
4) With some games, direction keys don't work (I¡'m talking about Transarctica/Ice Baron, wich has a text-mode option menu at start that does not recognize arrow keys (but needs them). That game is reported as "supported")
Yes, I've played text-only games on a
Macintosh.