How to get the status of button in tkinter?-CodePudding

from tkinter import *
import time

def checkTime():
    if len(hourInput.get()) != 0 and len(minuteInput.get()) != 0 and len(secondInput.get()) != 0:
        if hourInput.get() == time.strftime("%H"):
            print("good")
    
    window.after(500, checkTime)

def pressButton(button):
        button.config(relief=SUNKEN)

if __name__=='__main__':

    window = Tk()

    window.geometry("1920x1080")

    canvas = Canvas(window, width = 1980, height = 1020)
    
    canvas.pack()

    hourInput = StringVar()
    minuteInput = StringVar()
    secondInput = StringVar()

    setHour = Entry(window, text = hourInput, font = (20))
    setHour.place(x = 100, y = 20, width = 100, height = 40)

    setMinute = Entry(window, text = minuteInput, font = (20))
    setMinute.place(x = 300, y = 20, width = 100, height = 40)


    setSecond = Entry(window, text = secondInput, font = (20))
    setSecond.place(x = 500, y = 20, width = 100, height = 40)
    
    canvas.create_text(60, 40, text = "Hour: ", font = (20))

    canvas.create_text(260, 40, text = "Minute: ", font = (20))

    canvas.create_text(460, 40, text = "Second: ", font = (20))

    submit = Button(text = "Submit", height = 2, width = 10, font = (10))
    submit.config(command = lambda submit=submit:pressButton(submit))

    submit.place(x = 100, y = 100)
    
    checkTime()

    window.mainloop()

I want the function checkTime() to be called when my button is pressed. But how to get the status of my button and compare it ? I want to use the function only if the button is pressed as a test that the user agree with his inputs

CodePudding user response：

You can modify the button declaration as follows so that the checkTime() will trigger when the button is pressed.

submit = Button(text = "Submit", height = 2, width = 10, font = (10), relief=SUNKEN)
submit['command'] = checkTime  # no parentheses here

Also make sure that the checkTime() method call in the bottom is removed

CodePudding user response：

I put the function checkTime() inside the pressButton() function, and now the program works fine.

from tkinter import *
import time

def checkTime():
    if len(hourInput.get()) != 0 and len(minuteInput.get()) != 0 and len(secondInput.get()) != 0:
        if hourInput.get() == time.strftime("%H"):
            print("good")
    window.after(500, checkTime)

def pressButton(button):
        button.config(relief = SUNKEN)
        checkTime()

if __name__== '__main__':

    window = Tk()

    window.geometry("1920x1080")

    canvas = Canvas(window, width = 1980, height = 1020)
    
    canvas.pack()

    hourInput = StringVar()
    minuteInput = StringVar()
    secondInput = StringVar()

    setHour = Entry(window, text = hourInput, font = (20))
    setHour.place(x = 100, y = 20, width = 100, height = 40)

    setMinute = Entry(window, text = minuteInput, font = (20))
    setMinute.place(x = 300, y = 20, width = 100, height = 40)


    setSecond = Entry(window, text = secondInput, font = (20))
    setSecond.place(x = 500, y = 20, width = 100, height = 40)
    
    canvas.create_text(60, 40, text = "Hour: ", font = (20))

    canvas.create_text(260, 40, text = "Minute: ", font = (20))

    canvas.create_text(460, 40, text = "Second: ", font = (20))

    submit = Button(text = "Submit", height = 2, width = 10, font = (10))
    submit.config(command = lambda submit=submit:pressButton(submit))

    submit.place(x = 100, y = 100)

    window.mainloop()