"Wayne Watson" <sierra_mtnv...@sbcglobal.net> wrote
I'm not sure what normal is. Do you have an example,
Is this what you have in mind
<http://effbot.org/tkinterbook/entry.htm>?
=================start
from Tkinter import *
master = Tk()
e = Entry(master)
e.pack()
e.focus_set()
def callback():
print e.get()
b = Button(master, text="get", width=10, command=callback)
b.pack()
mainloop()
========================end
Yes thats exactly what I had in mind.
This begs the question as to why one would use control variables at
all?
From a light reading of the subject, it seems as though they may
help
in certain circumstances of coupling.
Yes, although you can still do it by hand.
One special quality of a control variable is that it can be shared
by a
number of different widgets, and the control variable can remember
all the widgets that are currently sharing it.
This is fairly rare in my experience but it would be handy. But OTOH
its sufficiently complex that I might prefer to make that complexity
explicit so that I remember its there!
HTH,
Alan G.
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