turtle.onclick() function in Python

The turtle module provides turtle graphics primitives, in both object-oriented and procedure-oriented ways. Because it uses Tkinter for the underlying graphics, it needs a version of Python installed with Tk support.

turtle.onclick()

This function is used to bind fun to a mouse-click event on this turtle or on canvas. 

Syntax :

turtle.onclick(fun, btn=1, add=None)

Parameters:

Arguments	Description
fun	a function with two arguments, to which will be assigned the coordinates of the clicked point on the canvas
btn	number of the mouse-button defaults to 1 (left mouse button)
add	True or False. If True, the new binding will be added, otherwise, it will replace a former binding

Below is the implementation of the above method with some examples :

Example 1 :

Python3

# import package
import turtle


# method to action
def fxn(x,y):

    # some motion
    turtle.right(90)
    turtle.forward(100)

# turtle speed to slowest
turtle.speed(1)

# motion
turtle.fd(100)

# allow user to click
# for some action
turtle.onclick(fxn)

Output :

Example 2 :

Python3

# import package
import turtle


# screen object
wn = turtle.Screen()

# method to perform action
def fxn(x, y):
  turtle.goto(x, y)
  turtle.write(str(x)+","+str(y))

# onclick action
wn.onclick(fxn)
wn.mainloop()

Output :