Greetings,
I've got this tkinter program which allows you to load a file with
File/LoadFile or Ctrl-L or from the Alt-F menu, as usual. But I'd
also like to be able to invoke it with:
shellprompt> midimix x.mid
and have it invoke its usual loadFile method on x.mid
But with the top-level code:
application = tkinter.Tk()
window = MainWindow(application)
if (len(sys.argv) > 1) and os.path.exists(sys.argv[1]):
window.loadFile(sys.argv[1])
application.mainloop()
it crashes:
File "./midimix", line 465, in loadFile
space0.grid(row=grid_row,
pady=round(0.5*(ymid[track_num]-ymid[track_num-1]))-50)
File "/usr/local/lib/python3.0/tkinter/__init__.py",
line 1845, in grid_configure
+ self._options(cnf, kw))
_tkinter.TclError: bad pad value "-50": must be positive screen distance
presumably because the window doesn't have dimensions before mainloop
is entered. Can I force the window to be laid out before entering
mainloop? Or can I invoke loadFile() after mainloop has started ?
Help gratefully received...
Regards, Peter
--
Peter Billam www.pjb.com.au www.pjb.com.au/comp/contact.html
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http://mail.python.org/mailman/listinfo/python-list
