map Ctrl with special characters

[rameo]

I still have problems mapping keys.

On my keyboard I have these keys I want to map:
<C-ò>
<C-à>
<C-è>
<C-ù>
<C-ì>

Tony once told in a message these info:
ò = (0xF2, o-grave) and <M-r> (Alt+0x72, Alt-r)
à = (0xE0, a-grave) and <M-`> (Alt+0x60, Alt-backtick)
è = (0xE8, e-grave) and <M-h> (Alt+0x68, Alt-h)
ù = (0xF9, u-grave) and <M-y> (Alt+0x79, Alt-y)
ì = (0xEC, i-grave) and <M-l> (Alt+0x6C, Alt-l)

But how to combine these letters to the Ctrl key?

[Tony Mechelynck]

On 27/04/12 17:45, rameo wrote:
> I still have problems mapping keys.
>
> On my keyboard I have these keys I want to map:

> <C-�>
> <C-�>
> <C-�>
> <C-�>
> <C-�>

>
> Tony once told in a message these info:

> � = (0xF2, o-grave) and <M-r> (Alt+0x72, Alt-r)
> � = (0xE0, a-grave) and <M-`> (Alt+0x60, Alt-backtick)
> � = (0xE8, e-grave) and <M-h> (Alt+0x68, Alt-h)
> � = (0xF9, u-grave) and <M-y> (Alt+0x79, Alt-y)
> � = (0xEC, i-grave) and <M-l> (Alt+0x6C, Alt-l)

>
> But how to combine these letters to the Ctrl key?
>

I'm not sure you can.

Try hitting Ctrl-K in Insert mode, followed by the desired key
combination, and see if anything appears. If yes, it is the <> form of
whatever Vim sees.

Or try hitting Ctrl-V in Insert mode followed by the key combination.
Vim will tell you what (if anything) it gets from the keyboard. For
instance if you hit Ctrl-V Ctrl-� and Vim inserts � it means that it
can't tell the difference between � and Ctrl-�. If you hit Ctrl-V Ctrl-�
and Vim doesn't insert anything (and, if 'showcmd' is on, you see that
^V doesn't disappear near the bottom right corner of the Vim screen),
then Vim hasn't got anything from the keyboard interface for your Ctrl-�
combo.


Best regards,
Tony.
--
The years of peak mental activity are undoubtedly between the ages of
four and eighteen. At four we know all the questions, at eighteen all
the answers.

[rameo]

When I hit Ctrl-K in insert mode followed by Ctrl-ò nothing happened.
When I hit Ctrl-Q (I have the gvim win version) in insert mode followed by Ctrl-ò again nothing happened.

Yes ^V (+ ^K) doesn't disappear near the bottom right corner of the Vim screen as you've indicated.

Does this mean that I can't map these keys with Ctrl?
I had to use C-Q.

[Ben Fritz]

Yes, as Tony said, if you press CTRL-V/CTRL-Q in insert mode, followed by your key combination, and nothing happens, then Vim does not even get the key sequence and you cannot map it.