python Button

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The Button widget in Tkinter allows you to add buttons to a Python application. You can customize the appearance of the button and associate a function to execute when the button is pressed.

Syntax:

W = Button(parent, options)

Here, parent refers to the parent widget (like the main application window), and options are the various settings used to configure the button.

Options for Tkinter Button:

SN Option Description
1 activebackground Background color when the mouse hovers over the button.
2 activeforeground Font color when the mouse hovers over the button.
3 bd Border width of the button in pixels.
4 bg Background color of the button.
5 command The function or method called when the button is pressed.
6 fg Foreground (text) color of the button.
7 font Font used for the button text.
8 height Height of the button (text lines for text buttons or pixels for image buttons).
9 highlightcolor The color of the button highlight when it has focus.
10 image Sets an image to be displayed on the button.
11 justify Alignment of multiple lines of text: LEFT, RIGHT, or CENTER.
12 padx Additional padding in the horizontal direction.
13 pady Additional padding in the vertical direction.
14 relief Type of the button border: SUNKEN, RAISED, GROOVE, or RIDGE.
15 state Button state: DISABLED makes the button unresponsive, ACTIVE makes it interactive.
16 underline Underlines the text of the button.
17 width Width of the button (number of letters for text buttons, or pixels for image buttons).
18 wraplength Wraps the text if it exceeds the given length, specified as a positive number.

Example of a Simple Tkinter Button:

from tkinter import *

# Create the main window
root = Tk()

# Function to be called when button is clicked
def on_button_click():
    print("Button clicked!")

# Create a button widget
button = Button(root, text="Click Me!", command=on_button_click, bg="lightblue", fg="black", padx=20, pady=10)

# Place the button in the window
button.pack()

# Run the application
root.mainloop()

In this example:

• A button labeled "Click Me!" is created.

• The command option is set to on_button_click, which is a function that prints a message to the console when the button is clicked.

• Additional customization includes the button's background color (bg), text color (fg), and padding (padx,pady).

You can modify the button's appearance and behavior by using different options depending on your application's needs.

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