Pyhook在按下6次键后停止捕获键事件

Question

我编写了一个脚本，当使用pyHook按下一个键时移动鼠标。问题是，在6个按键事件后，脚本停止拾取按键，需要从任务管理器结束。

我在Windows 7机器上使用python 2.7。对于类似的问题，我还没有找到其他人的答案。

代码的目的是钩住鼠标，然后一旦鼠标被点击，移动光标，松开鼠标并钩住键盘。在这里，键盘钩子只适用于6个事件。如果我将鼠标和键盘同时挂钩，那么每个挂钩只适用于6个事件。有人知道问题是什么，如何解决吗?

import pythoncom, pyHook, win32api
import math
from time import sleep
# Radius is 250px
radius = 50
# Intervals in the circle
n_intervals = 50
# List of intervals
l_intervals = []
for i in range(0, n_intervals):
        l_intervals.append((i+1) * math.pi * 2 / n_intervals)
# Move the cursor in a circle
def move_circle():
        (x, y) = win32api.GetCursorPos()
        old_pos = (x, y)
        center = (x-radius, y)
        for i in l_intervals:
                p = (radius * math.cos(i), radius * math.sin(i))
                new_pos = (int(center[0]+p[0]), int(center[1]-p[1]))
                win32api.SetCursorPos(new_pos)
                sleep(0.01)

def OnKeyboardEvent(event):
    if event.Key == "Media_Play_Pause":
        exit()
    else:
        move_circle()
    # return True to pass the event to other handlers
    return True

def OnMouseEvent(event):
    # called when mouse events are received
        if event.MessageName == "mouse left down":
                move_circle() # move the cursor
            hm.UnhookMouse() # unhook the mouse
            hm.HookKeyboard() # hook the keyboard
        return True

hm = pyHook.HookManager()
hm.MouseAll = OnMouseEvent
hm.KeyDown  = OnKeyboardEvent
# Hook the mouse
hm.HookMouse()
# Wait for any events
pythoncom.PumpMessages()

更新:我找到了一个解决方案，并在下面发布了答案，但仍然感谢任何可以解释为什么我首先遇到这个问题的答案，以及为什么解决方案修复了它。

Answer 1

经过更多的谷歌搜索，我找到了一个适合我的解决方案:pyHook + pythoncom在按了太多的[Python]键后停止工作。我试了他的第一个建议，我的问题似乎解决了。现在我的代码中的pyHook部分如下所示:

import pythoncom, pyHook, win32api, sys
import math
import threading, time
from time import sleep
...
#attempt to stop pyHook hang...             
lock = threading.Lock()
def KeyEventThread1(i):
    lock.acquire()
    sys.exit()
    lock.release()
def KeyEventThread2(i):
    lock.acquire()
    move_circle()
    lock.release()

def OnKeyboardEvent(event):
    if event.Key == "Media_Play_Pause":
        t = threading.Thread(target=KeyEventThread1, args=(1,))
        t.start()
        sys.exit()
    else:
        t = threading.Thread(target=KeyEventThread2, args=(1,))
        t.start()
    # return True to pass the event to other handlers
    return True
def MouseEventThread(i):
    lock.acquire()
    sleep(.2) #So that mouse is not depressed when moved
    move_circle() # move the cursor
    hm.UnhookMouse() # unhook the mouse
    lock.release()  
def OnMouseEvent(event):
    # called when mouse events are received
    if event.MessageName == "mouse left down":
        t = threading.Thread(target=MouseEventThread, args=(1,))
        t.start()
    hm.HookKeyboard()
    return True
hm = pyHook.HookManager()
hm.MouseAll = OnMouseEvent
hm.KeyDown  = OnKeyboardEvent
# Hook the mouse
hm.HookMouse()
 # hook the keyboard
# Wait for any events
pythoncom.PumpMessages()