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Let us suppose we want to change the border color of a tkinter widget. We can configure the widget by passing the highlightcolor, highlightbackground property of the widget.ExampleIn this example, we have created an Entry widget and a button that can be triggered to change the border color of the Entry Widget.#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("600x250") #Define a function to change the color of entry widget def change_color(): text.config(highlightthickness=2, highlightbackground="red") #Create a Entry widget for which we want ... Read More
Tkinter Entry widget is used to display a single line text. Using tkinter Entry widget, we can set its value or content by triggering a button. It has mainly two types of operation: insert and delete.Using the Tkinter Button widget, we will set the content of the Entry widget.Example#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Define a function to change the value def change_text(txt): text.delete(0, END) text.insert(0, txt) #Set the geometry of frame win.geometry("600x250") #Create an Entry Widget text= Entry(win) text.pack() #Create a button ... Read More
In order to change the default behavior of tkinter widgets, we generally override the option_add() method. The properties and values passed to option_add() method will reflect the changes in all the widgets in the application. Thus, changing the default font will affect the font for all the widgets defined in the application.ExampleHere we will pass two parameters into the option_add() method, i.e., option_add("*font", "font-family font-size font-style font-orientation").#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("600x400") #Change the default Font that will affect in all ... Read More
We can customize the tkinter widgets using the tkinter.ttk module. Tkinter.ttk module is used for styling the tkinter widgets such as setting the background color, foreground color, activating the buttons, adding images to labels, justifying the height and width of widgets, etc.In order to add a background color in tkinter widgets, we can specify the background property in the widget.ExampleIn the following example, we will create a button that will change the background of the text label.#Import the tkinter library from tkinter import * from tkinter.ttk import * #Create an instance of tkinter frame win = Tk() #Set the ... Read More
When we invoke the destroy() method with the tkinter window object, it terminates the mainloop process and destroys all the widgets inside the window. Tkinter destroy() method is mainly used to kill and terminate the interpreter running in the background.However, quit() method can be invoked in order to stop the process after the mainloop() function. We can demonstrate the functionalities of both methods by creating a button Object.Example#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("650x450") #Define a function for Button Object def quit_win(): ... Read More
tkinter.ttk is a module that is used to style the tkinter widgets. Just like CSS is used to style an HTML element, we use tkinter.ttk to style tkinter widgets.Here are the major differences between tkinter widget and tkinter.ttk −Tkinter widgets are used to add Buttons, Labels, Text, ScrollBar, etc., however, tkinter.ttk supports a variety of widgets as compared to tkinter widgets.Tkinter.ttk doesn't support Place, Pack() and Grid(), thus it is recommended to use tkinter widget with ttk.Ttk has many features and configurations that extend the functionality of a native application and make it look more modern.Tkinter widget is a native ... Read More
ProblemWrite a program to print heart shaped pattern with the name in centre using for loop.SolutionThe user has to enter the name that should be printed in centre along with the number of rows the stars has to be print.AlgorithmRefer an algorithm given below to print the name in heart pattern by using for loop.Step 1 − Declare variables.Step 2 − Read a name at runtime that should be printed on centre.Step 3 − Read number of rows.Step 4 − Find the length of name.Step 5 − Print upper part of the heart.Step 6 − Print lower part of the ... Read More
Linked lists use dynamic memory allocation i.e. they grow and shrink accordingly. It is collection of nodes.Node has two parts which are as follows −DataLinkTypes of Linked ListsThe types of linked lists in C programming language are as follows −Single / Singly linked listsDouble / Doubly linked listsCircular single linked listCircular double linked listAlgorithmRefer an algorithm given below for storing the car information by using the dynamic linked list.Step 1 − Declare structure variables.Step 2 − Declare Function definition to display.Step 3 − Allocate dynamic memory allocation to variable.Step 4 − Use do while loop to enter the car information.Step ... Read More
Intersection operationIf array 1 = { 1,2,3,4,6} Array 2 = {1,2,5,6,7}Then, intersection of array1 and array 2 isArray1 ^ array 2 = {1,2,3,4,6} ^ {1,2,5,6,7} = {1,2,6}Set of common elements is called an intersection.The logic for intersection is as follows −k=0; for(i=0;i
In C programming language, we can find the area of circle, area and volume of cylinder with the help of structures.The logic used to find area of circle is as follows −s.areacircle = (float)pi*s.radius*s.radius;The logic used to find area of cylinder is as follows −s.areacylinder = (float)2*pi*s.radius*s.line + 2 * s.areacircle;The logic used to find the volume of cylinder is −s.volumecylinder = s.areacircle*s.line;AlgorithmRefer an algorithm given below to find the area of circle and cylinder along with other parameters by using structures.Step 1 − Declare structure members.Step 2 − Declare and initialize the input variables.Step 3 − Enter length and ... Read More