[Tutor] Re: Tix Select programming problem

[Michael Lange]

On Wed, 22 Dec 2004 11:37:57 +0900
Guillermo Fernandez Castellanos <guillermo.fernandez.castellanos at gmail.com> wrote:

Hi Guille,

> 
> I'm playing now with the Select buttons:
> 
> import Tix
> 
> def prtS():
>     print fruits.cget('value')
> 
> def prtC(val):
>     print val
>     print sel.cget('value')
> 
> root = Tix.Tk()
> fruits=Tix.Select(root,label="Fruits:", orientation='horizontal')
> fruits.add('orange',text="Orange",width=6,command=prtS)
> fruits.add('lemon',text="Lemon",width=6,command=prtS)
> fruits.add('apple',text="Apple",width=6,command=prtS)
> fruits.pack()
> 
> sel=Tix.Control(root, label="X Coordinates", max=10, min=3,
> integer=True,command=prtC)
> sel.pack()
> 
> root.mainloop()
> 

The "command" option should be assigned to the Select widget itself, not to the added buttons.
It takes two arguments then (from the tixSelect man page):

       Command-Line Name:-command
       Database Name:  command
       Database Class: Command

              Specifies the TCL command to be executed when the -value of  the
              Select  widget is changed. This command will be invoked with two
              arguments. The first is the name of the  button  subwidget  that
              has  toggled.  The  second is a boolean value indicating whether
              the button subwidget is selected. This command is executed  only
              when the -disableCallback option is set to false.

So I changed your code a little to make it work:

import Tix

def prtS(*args):
    print args
    print fruits.cget('value')

def prtC(val):
    print val
    print sel.cget('value')

root = Tix.Tk()
fruits=Tix.Select(root,label="Fruits:", orientation='horizontal',command=prtS)
fruits.add('orange',text="Orange",width=6)
fruits.add('lemon',text="Lemon",width=6)
fruits.add('apple',text="Apple",width=6)
fruits.pack()

sel=Tix.Control(root, label="X Coordinates", max=10, min=3,
integer=True,command=prtC)
sel.pack()

root.mainloop()

Hope this helped

Michael