F1 does not work in FAR manager

[basinilya]

F1 works in local console, but does not work over putty.
Alt-F1 does not work in both cases

In fact, the example https://msdn.microsoft.com/en-us/library/windows/desktop/ms685035%28v=vs.85%29.aspx shows significant difference for function keys.

[rprichard]

It should be easy to synthesize the keyboard events on the Windows side. The difficult part will be figuring out what the terminal escape sequences are. The current event handling in winpty is not thorough.

I can solve that partly by looking up the codes online. To test, I'll need a terminal that lets me type those key combos, which is tricky because the Alt+Fnn keys are already doing desktop/window management things on my computer. Solvable, probably.

[basinilya]

Connecting with putty to linux and cygwin sshd. Both have LANG=en_US.UTF-8 TERM=xterm .
Launching mc and far accordingly; pressing F1.

[basinilya]

because the Alt+Fnn keys are already doing desktop/window management things on my computer

All right, it's the reason why it doesn't work in my mintty.
Could you concentrate on Fn keys without alt?

[rprichard]

I should be able to add putty's Fnn and Alt+Fnn keys. Here are its escape sequences:

	Fnn	Alt+Fnn
F1	^[[11~	^[^[[11~
F2	^[[12~	^[^[[12~
F3	^[[13~	^[^[[13~
F4	^[[14~	^[^[[14~
F5	^[[15~	^[^[[15~
F6	^[[17~	^[^[[17~
F7	^[[18~	^[^[[18~
F8	^[[19~	^[^[[19~
F9	^[[20~	^[^[[20~
F10	^[[21~	^[^[[21~
F11	^[[23~	^[^[[23~
F12	^[[24~	^[^[[24~

Also see http://aperiodic.net/phil/archives/Geekery/term-function-keys.html.

[basinilya]

Have you tried integrating with ncurses?

[rprichard]

I haven't looked that closely at ncurses/termcap/terminfo. My inclination so far is that the extra dependency isn't worth it. winpty has use cases that don't involve Cygwin, so there may not be a readily available ncurses/termcap/terminfo.