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Dynamically Resize Buttons When Resizing a Window using Tkinter

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Tkinter - Button that changes its properties on hover

Last Updated :10 Apr, 2023

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Python offers multiple options for developing GUI (Graphical User Interface). Out of all the GUI methods,tkinter is the most commonly used method. It is a standard Python interface to the Tk GUI toolkit shipped with Python. Python withtkinter is the fastest and easiest way to create GUI applications. Creating a GUI usingtkinter is an easy task.

In this article, we are going to create a button that changes its properties on hover.

Step-by-step Approach:

Importtkintermodule.

# import required modulefromtkinterimport*

Creating A Universal Function To Give Change On Hover Power To Every Button.

Theconfig() method is used to change the properties of any widget. Note that inconfig() methodbgandbackground are two different options andbackground represents background-color.

Syntax:

widget.config(**options)

Below is the implementation:

# function to change properties of button on hoverdefchangeOnHover(button,colorOnHover,colorOnLeave):# adjusting background of the widget# background on entering widgetbutton.bind("<Enter>",func=lambdae:button.config(background=colorOnHover))# background color on leving widgetbutton.bind("<Leave>",func=lambdae:button.config(background=colorOnLeave))

Create a button in driver code and call the explicit function.

# Driver Coderoot=Tk()# create button# assign button text along# with background colormyButton=Button(root,text="On Hover - Background Change",bg="yellow")myButton.pack()# call function with background# colors as argumentchangeOnHover(myButton,"red","yellow")root.mainloop()

Below is the complete program based on the above approach:

# import required modulefromtkinterimport*# function to change properties of button on hoverdefchangeOnHover(button,colorOnHover,colorOnLeave):# adjusting backgroung of the widget# background on entering widgetbutton.bind("<Enter>",func=lambdae:button.config(background=colorOnHover))# background color on leving widgetbutton.bind("<Leave>",func=lambdae:button.config(background=colorOnLeave))# Driver Coderoot=Tk()# create button# assign button text along# with background colormyButton=Button(root,text="On Hover - Background Change",bg="yellow")myButton.pack()# call function with background# colors as argumentchangeOnHover(myButton,"red","yellow")root.mainloop()

Output:

Dynamically Resize Buttons When Resizing a Window using Tkinter

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