Re: Some key binding in Emacs not properly work in mintty.

[Ken Brown <kbrown at cornell dot edu>]

On 8/2/2010 7:37 AM, Andy Koppe wrote:
> On 1 August 2010 16:17, Ken Brown wrote:
> > On 8/1/2010 10:18 AM, Oleksandr Gavenko wrote:
> > > Selection by Ctrl-Left/Right/Down work properly.
> > > But for Ctrl-Up Emacs say:
> > >
> > >     <select>    is undefined
> >
> > I can't reproduce this.  If it still happens after you update your Cygwin
> > installation (see below), please give a step-by-step recipe for reproducing
> > the problem.
>
> Looks like Oleksandr meant Shift- rather than Ctrl-, because I do get
> the "<select>  is undefined" message with Shift-Up. Same thing happens
> in xterm, so I don't know what's up with that.

OK, I can reproduce that too.  On the other hand, emacs running under 
X11 does recognize Shift-Up.

> > > Also I have trouble with<C-backspace>. Emacs think that
> > > I press<undo>.
> >
> > I think this is a mintty issue.  I'll let Andy comment.
>
> Unfortunately terminals don't have a standard keycode for
> Ctrl+Backspace, hence in emacs it won't do what's expected in any of
> them. In rxvt, it sends the same as plain Backspace. In xterm, it
> sends ^H, which will invoke the help. In mintty, it sends ^_ (i.e.
> 0x1F), which will indeed invoke Undo.

Again, emacs running under X11 recognizes the Ctrl-backspace keypress. 
I guess the bottom line is that emacs runs best under X11.

Ken

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