Windows挂钩与Python

Question

大家好.我正试图在Windows中获取一个钩子并使用Python来记录击键.为此,我正在使用LowLevelKeyboard回调过程.

def run():

    global KeyBdHook
    global messages

    KeyBdHook = HHook()
    messages = []

    start = time.time()

    #Record keystrokes for 2 seconds.
    while time.time() < (start + 2):
        KeyBdHook.hook = SetWindowsHookEx(13, KeyboardProc,
                                          GetModuleHandle(0), 0)
        if KeyBdHook.hook == 0:
            print 'ERROR: '+str(ctypes.windll.kernel32.GetLastError())
        UnhookWindowsHookEx(KeyBdHook.hook)

    print messages

def KeyboardProc(nCode, wParam, lParam):
    """http://msdn.microsoft.com/en-us/library/ms644985(v=vs.85).aspx"""


    if nCode < 0:
        return ctypes.windll.user32.GetNextHookEx(KeyBdHook.hook,
                                              nCode, wParam, lParam)
    else:
        ctypes.windll.kernel32.RtlMoveMemory(ctypes.addressof(KeyBdHook.kStruct),
                                             ctypes.c_void_p(lParam),
                                             ctypes.sizeof(lParam))

        messages.append(KeyBdHook.kStruct)
        return ctypes.windll.user32.GetNextHookEx(KeyBdHook.hook,
                                          nCode, wParam, lParam)


def SetWindowsHookEx(idHook, lpFn, hMod, dwThreadId):
    WinFunc = ctypes.WINFUNCTYPE(c_ulong, c_ulong, c_ulong, c_ulong)
    return ctypes.windll.user32.SetWindowsHookExA(idHook, WinFunc(lpFn), hMod, dwThreadId)

def GetModuleHandle(lpModuleName):
    return ctypes.windll.kernel32.GetModuleHandleA(lpModuleName)

def UnhookWindowsHookEx(hHook):
    return ctypes.windll.user32.UnhookWindowsHookEx(hHook)

class HHook():        
    def __init__(self):
        self.hook = HHOOK
        self.kStruct = KBLLHOOKSTRUCT()

class KBLLHOOKSTRUCT(Structure):
    """http://msdn.microsoft.com/en-us/library/ms644967(v=vs.85).aspx"""

    _fields_ = [("vkCode", c_ulong),
                ("scanCode", c_ulong),
                ("flags", c_ulong),
                ("time", c_ulong),
                ("dwExtraInfo", POINTER(c_ulong))]

这个问题是它永远不会进入KeyboardProc功能.我想我可能不得不使用ctypes.WINFUNCTYPE或ctypes.CFUNCTYPE将其转换为C类函数,但我无法弄明白.Windows似乎也没有在SetWindowsEx上抛出错误.

我假设它没有处理传递给SetWindowsEx的KeyboardProc参数.关于如何投射这个的任何想法,以便Windows可以输入数据？谢谢.

Answer 1

要复活一个老问题，ThiefMaster认为需要dll是不正确的。作为反例，我提出了一个纯Python热键模块，该模块实现了OP的要求。 这是Github仓库。

另外，对于更多功能，我建议使用pyHook或pyhk。。

此外，要获得更多功能，请考虑pywinauto，其中包括一个热键模块，以及更多其他功能。