在Linux上的python中侦听全局键组合

pykeylogger使用python-xlib模块捕获X显示器上的按键.有人已经创建了一个更简单的例子,说明如何在pastebin上完成此操作.下面是它原样复制的来源.

from Xlib.display import Display
from Xlib import X
from Xlib.ext import record
from Xlib.protocol import rq

disp = None

def handler(reply):
    """ This function is called when a xlib event is fired """
    data = reply.data
    while len(data):
        event,data = rq.EventField(None).parse_binary_value(data,disp.display,None,None)

        # KEYCODE IS FOUND USERING event.detail
        print event.detail

        if event.type == X.KeyPress:
            # BUTTON PRESSED
            print "pressed"
        elif event.type == X.KeyRelease:
            # BUTTON RELEASED
            print "released"

# get current display
disp = Display()
root = disp.screen().root

# Monitor keypress and button press
ctx = disp.record_create_context(
            0,[record.AllClients],[{
                    'core_requests': (0,0),'core_replies': (0,'ext_requests': (0,'ext_replies': (0,'delivered_events': (0,'device_events': (X.KeyReleaseMask,X.ButtonReleaseMask),'errors': (0,'client_started': False,'client_died': False,}])
disp.record_enable_context(ctx,handler)
disp.record_free_context(ctx)

while 1:
    # Infinite wait,doesn't do anything as no events are grabbed
    event = root.display.next_event()

您将不得不扩展处理程序以满足您的需要,而不仅仅是打印到屏幕,然后将其转换为单独的线程.

(痛苦的)替代方案是直接听键盘,而不依赖于外部库或X会话.在linux中,所有内容都是一个文件,你可以在后台将你的keyboard input will be in /dev/input作为文件读取,例如open(‘/ dev / input / even2′,’rb’).这不建议,因为它需要升级权限,找出哪个设备是键盘,然后创建自己的键映射.只是想让你知道必要时有什么可能.

编辑：也找到Global keybinding on X using Python gtk3,似乎有更多的例子善良.