tkinter button command

[Ajay]

hi!

if i set two buttons to call the same function when they are pressed, is
there any way, within the function of knowing which button invoked it.

cheers

--
Ajay Brar,
CS Honours 2004
Smart Internet Technology Research Group

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[Christopher T King]

On Wed, 4 Aug 2004, Ajay wrote:

if i set two buttons to call the same function when they are pressed, is
there any way, within the function of knowing which button invoked it.

Not built-in to Tkinter, but you can easily get such behaviour using
lambda like so:

from Tkinter import *
def click(which): .... print which, 'was clicked!' button1 = Button(text='Button 1',command=lambda: click('number 1'))
button2 = Button(text='Button 2',command=lambda: click('number 2'))
button1.pack()
button2.pack()

lambda: will wrap the call to click() up in a function. You can call
click() with any arguments this way; instead of strings, you could use
integers or a reference to the object itself (though you'd have to set
command after creating the button to do this).