Color changing window demo of tkinter after timer events

0

By Tony Veijalainen on Sep 25th, 2011 10:36 pm

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This is one small snippet of after event usage. You could express if you find this kind of simple code to be usefull as snippet. Notice also vegaseat's sticky message threads in begining of Python forum in addition to code snippets.

# originally posted in thread http://www.daniweb.com/software-development/python/threads/298190/1282328#post1282328
try:
    from Tkinter import *
except:
    from tkinter import *

def change(a=0):
    color_label.config(bg = "blue" if a & 1 else "purple")
    color_label.after(400,change, a ^ 1 )

if __name__ == '__main__':
    win = Tk() 
    win.geometry("500x300")
    win.title('Demonstrating after event')
    color_label = Label(win)
    color_label.pack(expand=YES, fill=BOTH)
    change()
    
    win.mainloop()

1 Year Ago

0

A question on the topic of background colors, is there a way to make an entire Frame's background white, including unassigned space? And, without getting those nasty grey areas around labels and windows?

pyguy62

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353 posts since Aug 2011

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1 Year Ago

0

re: pyguy62: Only by putting bg='white' everywhere, tk, I do not know ttk themes:

try:
    from Tkinter import *
except:
    from tkinter import *

if __name__ == '__main__':
    win = Tk() 
    win.geometry("500x300")
    win.title('Demonstrating bg')
    win.config(bg='white')
    color_frame = Frame(bg='white')
    Label(win, bg='white', text='test').pack()
    color_frame.pack(expand=YES, fill=BOTH)
    
    win.mainloop()

pyTony

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