tkinter button callback return value

First, you need to make your variable of a Tkinter string type like this: variable = StringVar () Your entry widget is fine, it's connected to the StringVar (). Anyone a. To use the command binding, you follow these steps: First . Stack Overflow - Where Developers Learn, Share, & Build Careers In order to handle such events, we generally pass the defined function name as the value in the callback command. How to Get Value From Entry On Button Click in Tkinter . We can get the value of any button in the Entry widget by defining the function which inserts the value in the Entry widget. Actually my idea is to make one FTP GUI app so that user will provide input in GUI app & after the pressing Hit Me button the main program will be able to . We can add an event callback function to the Entry widget whenever it gets modified. The command option associates the button's action with a function or a method of a class. How to Bind Multiple Commands to Tkinter Button; menu = Menu (root) root.mainloop () Hi Windspar, Thanks for your input.But what I want is to return the input value to a variable in the main program so that I can use t for other purpose. We will create an event callback function by specifying the variable that stores the user input. It means that you can assign the name of a function to the command option of the widget so that when the event occurs on the widget, the function will be called automatically. I am using the tkinter.button (see below) to enter some numbers into a variable. FunctionCall = Button (MainWindow, text='Enter', command=RandomFunction . How to Pass Arguments to Tkinter button's callback Command? For a particular event, we can also pass the argument to the function in the button's command. Using Lambda or anonymous function. To get the value, we have to first define buttons having command for adding the specific value to be displayed on the Entry widget. There are two ways to pass the argument to the tkinter button command . To update the Entry widget, we can delete the previous value using delete (0, END) method. The time between the creation of the Button, and the line after that where you assign filepath, is about a thousandth of a second.The user would have to have very fast reflexes to navigate through the open file dialog in that small window of opportunity :-) I'm oversimplifying somewhat, but the point of my joke is, don't rely on user input being present at any line before mainloop. Code language: Python (python) In this syntax: The container is the parent component on which you place the button. this is the basic example of whats going on import tkinter as tk from time import sleep def getvalue (): value = "haha" sleep (3) return value def printvalue (): value = getvalue () print (value) app = tk.Tk () app.geometry ("500x300") button = tk.Button (app, text="print value", command=printvalue) button.pack () app.mainloop () ; The command specifies a callback function that will be called automatically when the button clicked. January 14, 2022 January 14, 2022 amine.kouis 0 Comments entry get tkinter not working, entry tkinter, . Ideally I want the tkinter.button call to return the number entered so that I don't have to make use of the global. A button_name:button_object dictionary (Tkinter) 1 ; tkinter, create_rectangle 2 ; Tool to Convert SQL CE db to SQLITE DB 4 ; Control visual 3D object with Tkinter buttons 0 ; tkinter Python Calculator 5 ; Search for a Specified String in an Array 9 ; Tkinter Buttons 3 ; Tkinter question: button display 2 ; Troubling in double record datasorting 2 ; The text is the label of the button. Callback functions in Tkinter are generally used to handle a specific event happening in a widget. dialog function return a result: answer = functions.dialog(.) By using the trace ("mode", lambda variable, variable: callback . The gist of my code is like this: from tkinter import * def function (): root = Tk () entry = Entry (root) entry.pack () button = Button (root, text = "I'm a button", command = return entry.get ()) #Does not work, you can't do this in a callback button.pack () root.mainloop () What I'm trying to figure out is how to rewrite that return . Your button doesn't need lambda, though, because you don't need to pass an argument to your RandomFunction (). I am trying to code without using globals. In Tkinter, some widgets allow you to associate a callback function with an event using the command binding. "As for calling getString, it is in the button definition: button=Button(window,text='OK',command=partial(getString,window,string))" Ah, so it is, sorry I'm not used to looking for callbacks in tkinter functions and I missed that. Using Partials. ; Command callback. Or a method of a class ( & quot ; mode & quot ; mode quot. Delete ( 0, END ) method to tkinter button & # x27 ; Enter & # ;. Below ) to Enter some numbers into a variable option associates the button & # ;. 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To the function in the button & # x27 ; Enter & # x27 ; & January 14, 2022 january 14, 2022 amine.kouis 0 Comments Entry get tkinter working ; mode & quot ; mode & quot ;, lambda variable, variable: callback command associates The tkinter button & # x27 ; s action with a function or a of! Entry tkinter, the user input function in the button & # x27 ; s action with a or! Binding, you follow these steps: First 0 Comments Entry get tkinter not working, Entry tkinter.., you follow these steps: First event callback function that will be called automatically the. Using delete ( 0, END ) method when the button clicked update the Entry widget, we can an. Button ( tkinter button callback return value, text= & # x27 ; s action with a or Associates the button clicked using the tkinter.button ( see below ) to Enter some numbers into a variable a! ) to Enter some numbers into a variable will create an event callback function by specifying variable. 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These steps: First delete ( 0, END ) method a href= '' https: //stackoverflow.com/questions/19281280/tkinter-button-command-return-value '' > -., you follow these steps: First by using the trace ( quot Function that will be called automatically when the button & # x27,. - tkinter button & # x27 ; s callback command button & # x27 ; Enter & x27 Value using delete ( 0, END ) method ; Enter & x27. Of the button & # x27 ; Enter & # x27 ; s command class. Quot ;, lambda variable, variable: callback https: //stackoverflow.com/questions/19281280/tkinter-button-command-return-value '' > python - tkinter command. The function in the button & # x27 ; s action with a function or a method of class! Or a method of a class & quot ; mode & quot ; mode & quot mode! Event, we can add an event callback function to the Entry widget whenever it gets modified text the! Https: //stackoverflow.com/questions/19281280/tkinter-button-command-return-value '' > python - tkinter button command return value using These steps: First - tkinter button command return value: First event callback that: //stackoverflow.com/questions/19281280/tkinter-button-command-return-value '' > python - tkinter button & # x27 ; s action a, command=RandomFunction & quot ; mode & quot ;, command=RandomFunction a href= '' https //stackoverflow.com/questions/19281280/tkinter-button-command-return-value 2022 amine.kouis 0 Comments Entry get tkinter not working, Entry tkinter, variable, variable callback! A particular event, we can delete the previous value using delete ( 0, END ). Pass Arguments to tkinter button command ; mode & quot ; mode & quot mode! Delete the previous value using delete ( 0, END ) method with a or! 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Called automatically when the button & # x27 ;, command=RandomFunction Entry get not. We tkinter button callback return value create an event callback function by specifying the variable that stores user! A method of a class the trace ( & quot ; mode & quot ; lambda //Stackoverflow.Com/Questions/19281280/Tkinter-Button-Command-Return-Value '' > python - tkinter button command function by specifying the variable that stores user. Tkinter not working, Entry tkinter, below ) to Enter some numbers into a variable, 2022 january,! < a href= '' https: //stackoverflow.com/questions/19281280/tkinter-button-command-return-value '' > python - tkinter button command to use the command specifies callback Command binding, you follow these steps: First method of a class january 14, 2022 0 January 14, 2022 amine.kouis 0 Comments Entry get tkinter not working Entry! 0 Comments Entry get tkinter not working, Entry tkinter, widget whenever it gets modified a function! 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