The tearoff is used to detach menus from the main window creating floating menus. options: The options supported by Menu widget are title, tearoff, selectcolor, font, fg, postcommand, relief, image, bg, bd, cursor, activeforeground, activeborderwidth and activebackground.master: root is the master or parent widget.Creating the menu m = Menu(root, tearoff=0).The pack() method is used to position the child widget in the parent widget. However, pack() method is sued without any options here. options: The options supported by pack() method are expand, fill and side which are used to position the widget on the parent window.The Label widget is used to display text or images corresponding to a widget.The text displayed on the screen can further be formatted using the other options available under Label widget. Here the text option is used display informative text to the user and width and height specifies the position of the Label Widget in the parent window. options: Label() method supports the following options â text, anchor, bg, bitmap, bd, cursor, font, fg, height, width, image, justify, relief, padx, pady, textvariable, underline and wraplength.master: The parent window (root) acts as the master.Creating the label to be displayed L = Label(root, text="Right-click to display menu", width=40, height=20).The Tk() method creates a blank parent widget with close, maximize, and minimize buttons on the top. Parameter: In this example, Tk class is instantiated without arguments. Syntax: Tk(screenName=None, baseName=None, className=âTkâ, useTk=1) Import tkinter sub-module from tkinter import *.The Menu widget of Tkinter is used to implement toplevel, pulldown, and popup menus.
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The code in this article basically deals with event handling where a popup menu with various options is displayed as soon as right-click is encountered on the parent widget. Tkinter widget is capable of capturing a variety of events such as Button, ButtonRelease, Motion, Double-Button, FocusIn, FocusOut, Key and many more. Tkinter uses event sequences that allow the users to bind events to handlers for each widget. Events include mouse clicks, mouse movements or a keystroke of a user. The event is any action that must be handled by a piece of code inside the program. Tkinter provides a mechanism to deal with events. Note: For more information, refer to Python GUI â tkinter Tkinter offers a plethora of widgets that can be used to build GUI applications along with the main event loop that keeps running in the background until the application is closed manually. Of all the other frameworks supported by Python Tkinter is the simplest and fastest. Python 3.x comes bundled with the Tkinter module that is useful for making GUI based applications.
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