How to know if the left mouse click is pressed

Question

I am using PyAutoGUI library. How can I know if the left mouse button is pressed?

This is what I want to do:

if(leftmousebuttonpressed):
   print("left")
else:
   print("nothing")

Solution 1

(I'm the author of PyAutoGUI.) I can confirm that currently PyAutoGUI can't read/record clicks or keystrokes. These features are on the roadmap, but there aren't any resources or timelines dedicated to them currently.

Solution 2

How to know if left mouse click is pressed?

A simple version of the code inspired from the original documentation:

from pynput import mouse

def on_click(x, y, button, pressed):
    if button == mouse.Button.left:
        print('{} at {}'.format('Pressed Left Click' if pressed else 'Released Left Click', (x, y)))
        return False # Returning False if you need to stop the program when Left clicked.
    else:
        print('{} at {}'.format('Pressed Right Click' if pressed else 'Released Right Click', (x, y)))

listener = mouse.Listener(on_click=on_click)
listener.start()
listener.join()

Like Sir Al Sweigart mentioned in the comment above, I looked for pynput module which works perfect. See documentation and PyPi instructions at:

• https://pynput.readthedocs.io/
• https://pypi.org/project/pynput/

Install the library using pip: pip install pynput

Monitoring other events (e.g. Mouse move, click, scroll)

See the code under Monitoring the mouse heading from original documentation. https://pynput.readthedocs.io/en/latest/mouse.html#monitoring-the-mouse

Solution 3

I don't think you can use PyAutoGui to listen for mouseclick.

Instead try Pyhook (from their source page):

import pythoncom, pyHook

def OnMouseEvent(event):
    # called when mouse events are received
    print 'MessageName:',event.MessageName
    print 'Message:',event.Message
    print 'Time:',event.Time
    print 'Window:',event.Window
    print 'WindowName:',event.WindowName
    print 'Position:',event.Position
    print 'Wheel:',event.Wheel
    print 'Injected:',event.Injected
    print '---'

# return True to pass the event to other handlers
    return True

# create a hook manager
hm = pyHook.HookManager()
# watch for all mouse events
hm.MouseAll = OnMouseEvent
# set the hook
hm.HookMouse()
# wait forever
pythoncom.PumpMessages()

I believe you can you do this:

import pyHook, pythoncom

def left_down():
    print("left down")

def right_down():
    print("right down")

hm = pyHook.HookManager()
hm.SubscribeMouseLeftDown(left_down)
hm.SubscribeMouseRightDown(right_down)
hm.HookMouse()
pythoncom.PumpMessages()
hm.UnhookMouse()

They also do keyboards events, just go look their api up.

Edit: Here's their mini tutorial: https://sourceforge.net/p/pyhook/wiki/PyHook_Tutorial/

Also PyHook is only for windows (thanks to John Doe for pointing it out)

Comments

[John Doe]

Would be nice if you provide a link to pyHook for quick access, and it is worth noting that pyhook runs only on windows.

[Al Sweigart]

Unfortunately, no. I'd recommend the pynput module at pypi.org/project/pynput for a module that can record mouse input.