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- 2.4 Shaping the main window and conversing with the user
- nounce something to the user or to ask any simple question (e.g., yes/no), you don’t need to create you... for the dialog: possible values are: ERROR, INFO, QUESTION, and WARNING. The first of the functions we... dialog which: * contains an **icon** with a **question** mark in it; * returns ''True'' if the us... kinter as tk from tkinter import messagebox def question(): answer = messagebox.askyesno("?", "To
- Python Professional Course Series: GUI Programming
- It's not surprising that the light pen didn't conquer the market. The most important aspect of the case is a question: how do we organize computer–user interactio... e window performs a very specific task (it asks a question and forces the user to reply), it needs two ... es care of this. It's automatic and completely opaque. You don't need to do anything (or almost anythin
- 1.2 Let TkInter speak!
- s able to create **dialog boxes** intended to ask questions, display messages, and to receive a user's ... sagebox def Click(): replay = messagebox.askquestion("Quit?", "Are you sure?") if replay == '... den inside the callback: * we invoke the ''askquestion()'' function by passing two arguments to it:... user aware of the incoming issue; * the ''askquestion()'' function returns a string which is equal
- 1.3 Settling widgets in the window's interior
- ry manager is named ''pack()'' as it **packs subsequent widgets** into the window's interior. This mean... default pack's operation tends to deploy all subsequent widgets in one column, one below the other. You... 848.png }} We think that there is one intriguing question that can be asked here and now: do these but
- 1.8 Interacting with widget methods
- f their existence is very closely bound to the unique features of **event programming**. The methods a... h is as specific as the method itself – it’s a unique **id** of the planned invocation; is it usable? Y... e. Moreover, it isn’t assigned as a callback. The question is – who invokes it? The event managers do,
- 1.6 Events and how to handle them
- ooks clear, doesn’t it? Of course, there are two questions that should be answered immediately: * *... How are the events identified? * **A**: By **unique names** – each event has its own name and the nam
- 1.4 Coloring your widgets
- uman can distinguish about 7 million colors, consequently, the model should work well and it really doe
- 1.5 A simple GUI application
- be equated with an **affirmative answer** to some question) * the **OFF** state when the'' Checkbutto
- 1.9 Looking at variables
- urs. The function returns a string which is a unique observer **identifier**. Don’t try to interpret i
- 2.3 A small lexicon of widgets - Part 3
- you’re obliged to ensure that all hotkeys are unique! Now we’ll extend the ''File'' submenu and add a