tkinterでthread その3

概要

tkinterでthreadやってみた。
threading.Eventで、thread止めてみた。

サンプルコード

from tkinter import *
import time
import threading

def _delete_window():
    try:
        flg.clear()
        time.sleep(2)
        root.destroy()
    except:
        pass

def draw():
    while flg.is_set():
        str.set(time.strftime('%I:%M:%S'))
        time.sleep(1)

def func0():
    flg.set()
    t = threading.Thread(target = draw)
    t.start()
    print ('start')

def func1():
    flg.clear()
    print ('stop')

flg = threading.Event()
flg.set()
root = Tk()
root.protocol("WM_DELETE_WINDOW", _delete_window)
frame = Frame(root)
frame.grid(row = 3, column = 3)
startbutton = Button(frame, text = "Start", command = func0)
startbutton.grid(row = 0, column = 0, sticky = NSEW)
stopButton = Button(frame, text = "Stop", command = func1)
stopButton.grid(row = 0, column = 1, sticky = NSEW)
str = StringVar()
str.set('')
label = Label(frame, textvariable = str)
label.grid(row = 0, column = 2, sticky = NSEW)
t = threading.Thread(target = draw)
t.start()
root.mainloop()

以上。