a question about keymaps

a question about keymaps

[nusret]

Dear list members,
I tried the following in my _emacs file:

(define-key function-key-map [S-C-mouse-3]
[C-mouse-1])

But it doesn't bring up the buffer menu (that was what
I expected). I get a message in the minibuffer:
"<C-mouse-1> is undefined".

On the other hand, the following advances the point by
one line (without any selection), but I get a message
"Function  returns invalid key sequence":

(define-key function-key-map [S-C-mouse-3] 'next-line)


All in all, obviously I'm doing something wrong, but I
couldn't figure it out yet.

QUESTION: How can I correct the first form so that it
does what I expect? Also, what causes this behavior?
I'm not claiming any bug whatsoever, I'm just trying
to understand, and actually the whole point of this
exercise was just that. 

I'll appreciate any explanation and/or hints.
thank you in advance.

nusret


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Re: a question about keymaps

[Peter Dyballa]

Am 30.06.2007 um 23:38 schrieb nusret:

> QUESTION: How can I correct the first form so that it
> does what I expect? Also, what causes this behavior?

You need to bind a key to a function. [C-mouse-1] is no function.

Typing C-h k and then pressing C-mouse-1 you get the function bound  
to the left-most mouse key(mouse-buffer-menu) . Then bind it to S-C- 
mouse-3!

--
Greetings

   Pete

How many Microsoft engineers does it take to screw in a light-bulb?
None.
They just redefine "dark" as the new standard.

Re: a question about keymaps

[nusret]

--- Peter Dyballa <Peter_Dyballa@Web.DE> wrote:

> 
> Am 30.06.2007 um 23:38 schrieb nusret:
> 
> > QUESTION: How can I correct the first form so that
> it
> > does what I expect? Also, what causes this
> behavior?
> 
> You need to bind a key to a function. [C-mouse-1] is
> no function.
> 
> Typing C-h k and then pressing C-mouse-1 you get the
> function bound  
> to the left-most mouse key(mouse-buffer-menu) . Then
> bind it to S-C- 
> mouse-3!

Peter,
Thank you for the suggestion.
The reason I tried what i tried is the following:
(define-key function-key-map [(control tab)] [?\M-\t])
This one works and binds "\C-\t" to the action of the
key [?\M-\t]. Yet the other one doesn't work. there
should be a reason for this, but I'm not sure what.
What could be the difference?

As to your suggestion, I tried it upon your
suggestion. But it gives the error: "Function  returns
invalid key sequence" Apparently the function
"mouse-buffer-menu" requires an argument and probably
this causes the problem?? Just a guess... Any
suggestions?
thank you again,

Nusret


       
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Re: a question about keymaps

[nusret]

--- Peter Dyballa <Peter_Dyballa@Web.DE> wrote:

> 
> Am 30.06.2007 um 23:38 schrieb nusret:
> 
> > QUESTION: How can I correct the first form so that
> it
> > does what I expect? Also, what causes this
> behavior?
> 
> You need to bind a key to a function. [C-mouse-1] is
> no function.
> 
> Typing C-h k and then pressing C-mouse-1 you get the
> function bound  
> to the left-most mouse key(mouse-buffer-menu) . Then
> bind it to S-C- 
> mouse-3!

Just to be precise, the following gives the "Function 
returns invalid key sequence" error.

(define-key function-key-map [S-C-mouse-3]
'mouse-buffer-menu)

Nusret


       
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Re: a question about keymaps

[Peter Dyballa]

Am 01.07.2007 um 01:27 schrieb nusret:

> (define-key function-key-map [S-C-mouse-3]
> 'mouse-buffer-menu)

Why do you try to force a mouse binding into a key map for function  
keys? Can this cause the error you describe? How is with another key  
map, global-map, or such?

--
Greetings

   Pete

If my theory of relativity is proven successful, Germany will claim  
me as a German, and France will declare that I am a citizen of the  
world. Should my theory prove untrue, France will say that I am a  
German, and Germany will declare that I am a Jew.
                                                 -- Albert Einstein,  
1929

Re: a question about keymaps

[nusret]

--- Peter Dyballa <Peter_Dyballa@Web.DE> wrote:

> 
> Am 01.07.2007 um 01:27 schrieb nusret:
> 
> > (define-key function-key-map [S-C-mouse-3]
> > 'mouse-buffer-menu)
> 
> Why do you try to force a mouse binding into a key
> map for function  
> keys? 


Ignorance sir, sheer ignorance ;). 



> Can this cause the error you describe? How is
> with another key  
> map, global-map, or such?
> 
> --
> Greetings
> 
>    Pete


I changed it to global-map, as you suggested, and it
worked. You may have put your finger on the problem,
apparently mixing  mouse bindings and key bindings is
not trivial. But now things are certainly clearer.
Thank you very much for your helpful suggestions!
Nusret


       
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