python windows auto click

click.py

# -*- coding: utf-8 -*-
import time
import win32con
import win32api
import ctypes
from ctypes import wintypes
byref = ctypes.byref
user32 = ctypes.windll.user32 


def clicker(x,y):
    """Clicks on given position x,y
    Input:
    x -- Horizontal position in pixels, starts from top-left position
    y -- Vertical position in pixels, start from top-left position

    """

    win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN,x,y,0,0)
    win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP,x,y,0,0)

def auto_clicker(x = -1,y = -1):
    """Keep clicking on position x,y. If no input is given, gets from actual
    mouse position.

    """
    if x == -1 | y == -1:
        x,y = win32api.GetCursorPos()
    clicker(x,y)


HOTKEYS = {
    1: (win32con.VK_F5, win32con.MOD_WIN),
    2: (win32con.VK_F6, win32con.MOD_WIN),
    3: (win32con.VK_F7, win32con.MOD_WIN),
}

for id, (vk, modifiers) in HOTKEYS.items():
    print("Registering id", id, "for key", vk)
    if not user32.RegisterHotKey(None, id, modifiers, vk):
        print("Unable to register id", id)

def main():
    start_click = False
    try:
        msg = wintypes.MSG()
        t = user32.SetTimer(None, None, 100, None)
        while user32.GetMessageA(byref(msg), None, 0, 0) != 0:
            if msg.message == win32con.WM_HOTKEY:
                action = int(msg.wParam) 
                if action == 1:
                    print 'start'
                    start_click = True
                elif action == 2:
                    print 'end'
                    start_click = False
                elif action == 3:
                    print 'exit'
                    break
            if msg.message == win32con.WM_TIMER and start_click:
                auto_clicker()

            user32.TranslateMessage(byref(msg))
            user32.DispatchMessageA(byref(msg))
    finally:
        user32.KillTimer(None, t)
        for id in HOTKEYS.keys():
            user32.UnregisterHotKey(None, id)
            print("user32.UnregisterHotKey (None, id)") 

if __name__ == '__main__':
    main()