How to set default background colour tkinter

问题

Does anyone know the colour code for the default background? I cant seem to find this anywhere. In my program I changed the background colour and need to change it back to the default colour later on but I am unable to find the colour code.

Any help is appreciated. Thanks.

回答1:

Try this:

root.configure(background='SystemButtonFace')

回答2:

If you want to get the default background at runtime, you can use the cget method. This may return a color name rather than an rgb value.

import Tkinter as tk
root = tk.Tk()

bg = root.cget("background")
# eg: 'systemWindowBody'

You can convert that to a tuple of the red, green and blue components

rgb = root.winfo_rgb(bg)
# eg: (65535, 65535, 65535)

You can then format the value as a hex string if you wish:

color = "#%x%x%x" % rgb
# eg: '#ffffffffffff'

To reset the background after changing it, save the value, and then use the value with the configure command:

original_background = root.cget("background")
...
root.configure(background=original_background)

回答3:

Another option is just to clear the background setting. For example

import Tkinter as tk
root = tk.Tk()
lbl_status = ttk.Label(root, width=20, text="Some Text")

lbl_status['background'] = 'yellow'   # Set background to yellow
lbl_status['background'] = ''         # Reset it to system default

来源：https://stackoverflow.com/questions/35381385/how-to-set-default-background-colour-tkinter