Tkinter displays the application window by its default size. However, we can display a full-screen window by using attributes('fullscreen', True) method. The method is generally used for assigning a tkinter window with properties like transparentcolor, alpha, disabled, fullscreen, toolwindow, and topmost.
#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x250") #Add a text label and add the font property to it label= Label(win, text= "Hello World!", font=('Times New Roman bold',20)) label.pack(padx=10, pady=10) #Create a fullscreen window win.attributes('-fullscreen', True) win.mainloop()
Running the above code will display a full-screen window that can be closed by pressing the Alt+ F4 key.