key binding doesn't work under consle mode

key binding doesn't work under consle mode

[kid kid]

Hello!
   I have problem using Emacs. I use some key binding defined in my
dot emacs file:

(global-set-key "\C-h" 'delete-backward-char)
(define-key global-map "\M-h" 'backward-kill-word)
(define-key global-map [C-return] 'set-mark-command)

It works perfectly in emacs, but when I run "emacs -nw",
 I can type C-h to backword delete a char, type M-h to
 backward kill a word, but I can't use C-return to set mark.
 However, I use M-x describe-function <return> set-mark-command,
it says "It is bound to C-@, <C-return>, C-SPC.". But when I
type C-return, it just start a new line. I tried in the rxvt terminal
simulator or in real console(use Alt+Ctrl+F1), it doesn't work.

And I have another problem: when in real console(I mean switched
by typing Alt+Ctrl+F1~6), I can't use Alt key. When I want to type
M-x help, I must type ESC, then release it, then type x, then help.
Why doesn't the Alt key working in real console? Is it the fault of
wrongly configured emacs or the console?

                     Thank you!
                   pluskid

Re: key binding doesn't work under consle mode

[Kevin Rodgers]

kid kid wrote:
>    I have problem using Emacs. I use some key binding defined in my
> dot emacs file:
> 
> (global-set-key "\C-h" 'delete-backward-char)
> (define-key global-map "\M-h" 'backward-kill-word)
> (define-key global-map [C-return] 'set-mark-command)
> 
> It works perfectly in emacs, but when I run "emacs -nw",
>  I can type C-h to backword delete a char, type M-h to
>  backward kill a word, but I can't use C-return to set mark.
>  However, I use M-x describe-function <return> set-mark-command,
> it says "It is bound to C-@, <C-return>, C-SPC.". But when I
> type C-return, it just start a new line. I tried in the rxvt terminal
> simulator or in real console(use Alt+Ctrl+F1), it doesn't work.

I suspect rxvt and the console send the same key for RET and C-RET.
You can confirm that with `C-h k RET' then `C-h l' and `C-h k C-RET'
then `C-h l'.

-- 
Kevin Rodgers

Re: key binding doesn't work under consle mode

[Stefan Monnier]

> (global-set-key "\C-h" 'delete-backward-char)
> (define-key global-map "\M-h" 'backward-kill-word)
> (define-key global-map [C-return] 'set-mark-command)

Most text terminals have no such thing as a `return' key, only a RET key
which is really just another name for C-m.  So when you think you hit
C-return, Emacs really receives "C-C-m" aka "C-m".


        Stefan

Re: key binding doesn't work under consle mode

[kid kid]

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Yes, after following your instructions, I found the console and the rxvt
terminal do send only <return> key to emacs when I type the C-return, so
does the konsole terminal. But I wonder may I be able to change this strange
behavior of the terminal.

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