>I understand this:
>>
>> def f(w): gtk.main_quit()
>> button.connect("clicked", f)
>>
>
> Now my question is what is "w"? What is being passed
> to the function?
That will be defined by GTk. The framework will define what
each of its event hamdler callback functions looks like in terms
of parameters. I don;t know GTk but going on the basis of other
frameworkls I'll guess that its the widget where the event
occured - a bit like self in OOP. Thus you can add the same
handler function to several widgets and at run time manipulate
the specific widget that was clicked or whatever.
But thats a guess based on experience - and the fact that the
original programmer opted to call it w!
HTH,
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld
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