Python | focus_set() and focus_get() method
Last Updated :
25 Jun, 2019
Tkinter has a number of widgets to provide functionality in any GUI. It also supports a variety of universal widget methods which can be applied on any of the widget.
focus_get() and focus_set() methods are also universal widget methods. They can also be applied on Tk() method.
focus_set() method-
This method is used to set the focus on the desired widget if and only if the master window is focused.
Syntax:
widget.focus_set()
Below is the Python program-
from tkinter import *
from tkinter.ttk import *
master = Tk()
e1 = Entry(master)
e1.pack(expand = 1, fill = BOTH)
e2 = Button(master, text ="Button")
e2.focus_set()
e2.pack(pady = 5)
e3 = Radiobutton(master, text ="Hello")
e3.pack(pady = 5)
mainloop()
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Output:
You may observe in above image that Button widget has the focus. For better understanding copy and run above program.
focus_get() method-
This method returns the name of the widget which currently has the focus.
Syntax:
master.focus_get()
Note: You can use it with any of the widget, master in not necessary.
Below is the Python program –
from tkinter import *
from tkinter.ttk import *
master = Tk()
def focus(event):
widget = master.focus_get()
print(widget, "has focus")
e1 = Entry(master)
e1.pack(expand = 1, fill = BOTH)
e2 = Button(master, text ="Button")
e2.pack(pady = 5)
e3 = Radiobutton(master, text ="Hello")
e3.pack(pady = 5)
master.bind_all("<Button-1>", lambda e: focus(e))
mainloop()
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Output: Every time you click on any widget OR if you click the mouse button-1 above program will print the name of the widget which has the focus. For better understanding copy and run above program.
.!radiobutton has focus
.!entry has focus
.!button has focus
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