在Windows上，如何安装最低级别的全局键盘挂钩？

Question

我在Windows上用python开发一个自定义的arcade启动器。我想选择系统和游戏，然后启动模拟器-并需要一个特定的组合键来杀死模拟器。我所有的键钩子在测试随机应用程序时都能工作，但是当我真正启动模拟器（例如Nestopia）时，我的键钩子无法启动。我当前使用的是RegisterHotKey，它获取事件，但不获取热键。有人知道如何在Nestopia之前安装一个足够低的设备来实际获取事件吗？我的代码是：

import ctypes
import win32con
from ctypes import wintypes
from ctypes import byref
user32 = ctypes.windll.user32

class SimplekeyboardHook:

  def getNextId(self):
    SimpleKeyboardHook._id += 1
    return SimpleKeyboardHook._id

  # modifiers is a bitmask with win32con.[MOD_SHIFT, MOD_ALT, MOD_CONTROL, MOD_WIN]
  def waitFor(self, key, modifiers):

    # coerce to 0 if necessary
    modifiers = modifiers or 0

    id = self.getNextId()
    hk = user32.RegisterHotKey(None, id, modifiers, key)
    print "register hotkey: ",hk
    if not hk:
      print "Unable to register hotkey for key ", key
      return False

    print "registered id", id

    try:
      msg = wintypes.MSG()
      while user32.GetMessageA(byref(msg), None, 0, 0) != 0:
        print "got message",msg.message,"which is not",win32con.WM_HOTKEY
        if msg.message == win32con.WM_HOTKEY:
          print "got hotkey"
          if msg.wParam == id:
            print "found proper hotkey"
            return True

        user32.TranslateMessage(byref(msg))
        user32.DispatchMessageA(byref(msg))
    finally:
      user32.UnregisterHotKey(None, id)

    return False

SimpleKeyboardHook._id = 0

Answer 1

你应该看看user32的SetWindowsHookEx。这些函数允许您注册全局键盘挂钩。（别忘了打电话给CallNextHookEx把它们传下去。）

链接：http://msdn.microsoft.com/en-us/library/ms644990(v=vs.85).aspx

不过，我不知道如何在python中做到这一点，抱歉。在

Answer 2

您尝试过在SourceForge上使用pyHook吗？您可以检查DaniWeb的示例用法。在