> -----Original Message-----
> From: Stef Pillaert [mailto:[EMAIL PROTECTED]]
>
> It is a solution (and I realise that in a lot of Tcl/Tk
> tutorials this way of coding is recommended ;-), but I
> hesitate to write proc's for every button, where the
> actual command is very simple and short : in those
> cases I prefer to keep it in the button-command itself.
> I even have to admit that I often have very long and
> complex button-commands (Why would I write a procedure
> for it, since I'm not going to use it elsewhere, and
> Vtcl shows me the command nice and clean in one window,
> the same as if it where a procedure).
The reason that you should write procs is that the button's -command script
cannot be byte-compiled. You may only call the command script from one
place, but it will run faster if you use a proc.
Tk must dynamically build the command string to include any % substitutions
(see the [bind] man page), eliminating the possibility of byte-compiling.
Disclaimer: I don't recall if command scripts that without % substitutions
get byte-compiled. A little experimenting on my part indicates that they do
not, but there is probably a more authoritative source.
Bob
--
Bob Techentin [EMAIL PROTECTED]
Mayo Foundation (507) 538-5495
200 First St. SW FAX (507) 284-9171
Rochester MN, 55901 USA http://www.mayo.edu/sppdg/
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