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+--- Thread: Exiting/killing a program with tkinter but leaving the graphic on the screen (/thread-17335.html)
Exiting/killing a program with tkinter but leaving the graphic on the screen - jpezz - Apr-07-2019
I want the opposite of what most people want. I call a python subprogram to put a tk label on the screen. I want that program to terminate itself when it outputs the label (best) or to be sent a "kill" signal from the parent that will terminate the program but leave the label on the screen. Is that possible?
Note that the label is not interactive (i.e. not a button or anything that returns a value).
Note that the label will not have any titlebar. ".overrideredirect(1)"
RE: Exiting/killing a program with tkinter but leaving the graphic on the screen - Gribouillis - Apr-07-2019
For me, if there is a label on the screen, or any image, it means that there is a running program that displays this image. Do you want te replace the python process by some other program?
RE: Exiting/killing a program with tkinter but leaving the graphic on the screen - DeaD_EyE - Apr-07-2019
Something like this?
In this example I use just the stdout of the subprogramm, to set the label.
For demonstration, it's called after 5s.
gui.py
import sys
from tkinter import Tk, Button, Variable
from subprocess import check_output
from threading import Timer
def make_gui():
root = Tk()
text = Variable(root)
text.set('Before')
Button(root, textvariable=text).pack()
Button(root, text='Exit', command=root.destroy).pack()
return root, text
def main():
root, text_var = make_gui()
# with threadnig timer
#timer = Timer(5, label, args=(text_var,))
#timer.start()
# root.after
root.after(5000, label, text_var)
root.mainloop()
def label(text_var):
stdout = check_output([sys.executable, 'subprogram.py'], encoding='utf8')
text_var.set(stdout)
if __name__ == '__main__':
sys.exit(main())subprogram.py#!/usr/bin/env python3
print('Hello Label')
RE: Exiting/killing a program with tkinter but leaving the graphic on the screen - jpezz - Apr-07-2019
DeaD_EyE,
No. I would want a python program like your button program (but I don't need active buttons) that when it was executed by another script, it would output the "Button" (or in my case a "label" then it would terminate or be terminated but leave the "button" (in my case, jut a label) behind even though the program that produced it is gone. Think of a program like xsetbg. If my python program called it as a subprocess, it would set the background then terminate but the background would not be "unset". Now, I don't want to set a background. I just want to create a label (with text or images or both or ..) then exit leaving that label sitting on the screen.