[Tkinter-discuss] get root.winfo_pointerxy()
Cameron at phaseit.net
Thu Sep 1 17:19:56 CEST 2011
On Thu, Sep 01, 2011 at 10:37:31AM -0400, Douglas S. Blank wrote:
> On 09/01/2011 10:21 AM, ÊØÖê´ýÍÃ wrote:
> >def myprint():
> > print root.winfo_pointerxy()
> When you bind a function to the canvas, it is expecting a function that
> takes an argument (which is probably the object to which the binding is
> So, you could just allow myprint to take an argument, and ignore it:
> def myprint(arg):
> print root.winfo_pointerxy()
I entirely agree with the counsel Dr. Blank has provided.
While I expect the original questioner has all he needs to
move forward, I'll provide a bit more detail for the
benefit of other readers.
Let's look at "arg", "which is probably the object to
which the binding is bound". It's not; it's the detected
*event* (from which that object can be calculated, though)
<URL: http://www.pythonware.com/library/tkinter/introduction/events-and-bindings.htm >.
That's not all. One could temporarily update myprint's
definition to be something like
print "arg is '%s'." % arg
to have Python's introspection report more information
about the argument.
And *that* isn't all, either. If one were somehow
stranded-on-a-desert-island and unsure how many (not-
necessarily-named) arguments were arriving, one could
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