from win32api import GetKeyState
from pynput.mouse import Listener
from pynput.keyboard import Key, Controller
import time

# 键盘控制控件
ctr = Controller()


def key_up(key, t=0.1):
    # 按下按键
    ctr.press(key)
    time.sleep(t)


def key_down(key, t=0.1):
    # 松开按键
    ctr.release(key)
    time.sleep(t)


def is_caps():
    # 监听大小写
    return GetKeyState(20)


def on_scroll(x, y, dx, dy):
    # 监听鼠标滚轮, 并检测大小写
    # print('Scrolled {0}'.format((x, y)))
    if dy == 1:
        print("关掉大写")
        if is_caps():
            key_up(Key.caps_lock)
            key_down(Key.caps_lock)
            
    elif dy == -1:
        print("开启大写")
        if not is_caps():
            key_up(Key.caps_lock)
            key_down(Key.caps_lock)


# 连接事件以及释放
with Listener(on_scroll=on_scroll) as listener:
    listener.join()