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A StringVar object in Tkinter can help manage the value of a widget such as an Entry widget or a Label widget. You can assign a StringVar object to the textvariable of a widget. For example, data = ['Car', 'Bus', 'Truck', 'Bike', 'Airplane'] var = StringVar(win) my_spinbox = Spinbox(win, values=data, textvariable=var)Here, we created a list of strings followed by a StringVar object "var". Next, we assigned var to the textvariable of a Spinbox widget. To get the current value of the Spinbox, you can use var.get().ExampleThe following example demonstrates how you can use a StringVar object in an ... Read More
To set a default string value on a Tkinter Spinbox, we will have to use the set method. Let us take an example and see how to create a spinbox with a set of string values and then set a default string.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Create a set of strings and save it in a variable, data.Next, use the StringVar() constructor to create a StringVar object. It helps to manage the value of a widget, which is Spingbox in this case. If you don't pass ... Read More
To draw a line following mouse coordinates, we need to create a function to capture the coordinates of each mouse-click and then draw a line between two consecutive points. Let's take an example and see how it can be done.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Create a user-defined method "draw_line" to capture the x and y coordinates of each mouse click. Then, use the create_line() method of Canvas to draw a line between two consecutive points.Bind the left-click of the mouse with the draw_line method.Finally, run the ... Read More
To put a border around a Frame in Tkinter, we have to use the highlightbackground and highlightthickeness parameters while creating the Frame. Let's take an example and see how to use these two parameters.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Create a frame with Frame() method. Highlight the border of the frame with a color, highlightbackground="blue". Then, set the thickness of the border, highlightthickness=2.Next, create some widgets inside the frame. In the example, we have placed four checkbuttons and a button inside the frame.Finally, run the mainloop of ... Read More
To copy from clipboard, we can use the clipboard_get() method of Tkinter. Let's take an example and see how to get the data from the clipboard and display it on a Tkinter window.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Next, call clipboard_get() to get the text from the clipboard and store the data in a variable "cliptext".Create a label to the display the clipboard text. Pass cliptext as text, "text=cliptext".Finally, run the mainloop of the application window.Example# Import the tkinter library from tkinter import * # Instance ... Read More
In this tutorial, we are going to write a program the finds the number of integral points between the given two points.The number of points between two given points will be gcd(abs(x2), abs(y1-y2)) - 1.If the line joining is parallel to x-axis, then the number of integral points will be abs(y1 - y2) - 1.If the line joining is parallel to y-axis, then the number of integral points will be abs(x1 - x2) - 1If the x points of both points are equal, then they are parallel to the x-axis. If the y points of both points are equal, then ... Read More
To obtain a user's IP address, we can use Python's native networking interface, socket. First of all, we need to query the device's host name and then get its associated IP address.In this example, we will use the socket library to get the host name and IP address and print the details on two labels.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Next, use the gethostname() method of socket library to get the host name and store it in a variable "hostname".Then use the gethostbyname() method and pass the ... Read More
To draw a dashed line on a Tkinter canvas, we can use the dash parameter of create_line() method.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Create a Canvas widget and set its height and width.Next, use the create_line function and pass the coordinates of the line (x1, y1) and (x2, y2).To get a dashed line, use the dash parameter dash=(5, 1) for 5px dash followed by 1px space.You can set the color and width of the dashed lines using the fill and width parameters.Finally, run the mainloop of the ... Read More
To align the checkbuttons to left, you can use the anchor parameter and set it to "w" (west). Let's take an example and see how to do it.Steps −Import the tkinter library and create an instance of tkinter frame.Set the size of the frame using geometry method.Create a LabelFrame to collect the checkbuttons in a group.Next, create a checkbutton inside the LabelFrame and set its anchor to the West. anchor='w'.Similarly, create three more checkbuttons with their anchor set at West. It will align all the checkbuttons to the left.Finally, run the mainloop of the application window.Examplefrom tkinter import * ... Read More
Given a number n, we have to find the number of integers with an odd number of set bits in their binary form. Let's see an example.Inputn = 10Output5There are 5 integers from 1 to 10 with odd number of set bits in their binary form.AlgorithmInitialise the number N.Write a function to count the number of set bits in binary form.Initialise the count to 0.Write a loop that iterates from 1 to N.Count the set bits of each integer.Increment the count if the set bits count is odd.Return the count.ImplementationFollowing is the implementation of the above algorithm in C++#include ... Read More