For the record, I totally agree with and support the arguments below, and
would have no qualms with a TIP which implemented them.  It would make Tk
both better and more consistent cross-platform, without sacrificing
compatibility in any meaningful way.

Vince.

On Mon, 29 Sep 2003, Benjamin Riefenstahl wrote:
>  As I see it, using "Mod4" is suprising behaviour.  If I wanted to use
>  the keypad enter key, I would check the list of keysyms in the header,
>  see <KP_Enter> and try that.  Several people have lately done that and
>  than asked why this doesn't work on Windows or Mac.
> 
>  With <KP_Enter> implemented on Windows and Mac we'd never have any
>  such discussion again.  With the "Mod4" proposal, we will.  We'd have
>  to refer programmers to some specific bit of Tk documentation that
>  discusses this issue.  I prefer something that is obvious to something
>  that needs new documentation.
> 
>  The most convincing (for me) argument for the "Mod4" proposal is that
>  it's more compatible with existing binds to <Return>.  This is
>  important on Windows, because <Return> is supposed to invoke the
>  default button in Windows dialogs, and <KP_Enter> should have the same
>  meaning.  But <KP_Enter> is most likely not bound by some current
>  Windows-only applications.
> 
> 
>  As an alternative to "Mod4", [event generate] has been proposed.  I
>  like that idea.
> 
>  Implement <KP_Enter> and add a default binding in the init scripts
>  like
> 
>    bind all <KP_Enter> {event generate %W <Return>}
> 
>  That would satisfy the compatibility requirement nicely and in a
>  straight-forward way.  It would still make Tk on Windows compatible
>  with X11.
> 
>  Of course the same could be done with all (or at least most) other
>  keys on the keypad.



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