[racket] Simple keybinding question

Dear Robby and matthew,

Its a Dell laptop from the USA with a standard american keyboard.  I'm
running Windows Vista.

Both:
(keybinding "?c:m:r" (λ (editor evt) (send editor insert "ṝ")))
and
(keybinding "c:m:r" (λ (editor evt) (send editor insert "ṝ")))

don't output anything when I press ctrl,alt, r together.

Also:
(keybinding "c:s:a" (λ (editor evt) (send editor insert "Ā")))
Outputs A not   Ā when I press ctrl,shift, a

Thanks,
Harry

On Sun, Nov 20, 2011 at 9:16 AM, Matthew Flatt <mflatt at cs.utah.edu> wrote:

> Also, does changing "c:m:r" to "?:c:m:r" have any effect?
>
> The "?:" prefix means "try to match with the character that would have
> been produced if the AltGr key wasn't pressed", since an Ctl+Alt
> combination can be treated as an AltGr modifier that might produce a
> character other than "r" (depending on your keyboard configuration).
>
> At Sun, 20 Nov 2011 06:52:06 -0600, Robby Findler wrote:
> > What does it do when you type that last keybinding? Do you just see an
> > "r" inserted? Also, just to confirm: you have an American keyboard,
> > right?
> >
> > Robby
> >
> > On Sat, Nov 19, 2011 at 11:18 PM, Harry Spier <vasishtha.spier at gmail.com
> >
> > wrote:
> > > I want to set up some user defined keybindings to type unicode letters
> with
> > > diacritical marks into DrRacket but I want to use the same keybinding
> system
> > > I'm used to.  I'm able to set up the user defined keybindings that use
> only
> > > one control character.  But I can't figure out how to set up
> keybindings
> > > that use two control characters pressed simultaneously.  For example I
> can't
> > > figure out how to set a keybinding up so that Ctrl,Alt and r pressed
> > > simultaneously will print r with dot underneath and macron on top,
> i.e. "ṝ"
> > >
> > > I'm using Racket on Windows.
> > > I tried the following in my user defined keybindings file..
> > > #lang s-exp framework/keybinding-lang
> > > (keybinding "c:a" (λ (editor evt) (send editor insert "ā")))
> > > (keybinding "c:i" (λ (editor evt) (send editor insert "ī")))
> > > (keybinding "c:u" (λ (editor evt) (send editor insert "ū")))
> > > (keybinding "m:t" (λ (editor evt) (send editor insert "ṭ")))
> > > .
> > > .
> > > .
> > > (keybinding "c:m:r" (λ (editor evt) (send editor insert "ṝ")))
> > > Everything works except the last keybinding which I thought would mean
> > > ctrl,alt, and r pressed simultaneously.
> > > Thanks in advance
> > > Harry Spier
>
>
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