Python-uinput它不能移動鼠標光標

Question

python-uinput當我將其作為腳本運行時，它無法移動光標

python main.py

但是當我逐步使用Python交互式運行時，效果很好

import uinput
import Tkinter as tk

root = tk.Tk()

screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
root.destroy()

device = uinput.Device([
         uinput.BTN_LEFT,
         uinput.BTN_RIGHT,
         uinput.REL_X,
         uinput.REL_Y,
         ])
def main():
    device.emit(uinput.REL_X, -1 * screen_width)
    device.emit(uinput.REL_Y, -1 * screen_height)
if __name__ == '__main__':
    main()

這是一個不會移動光標的命令。

spksoft@spksoft ~/code/python/Sample HI $ python main.py
Traceback (most recent call last):
  File "main.py", line 13, in <module>
    uinput.REL_Y,
  File "/usr/local/lib/python2.7/dist-packages/uinput/__init__.py", line 161, in __init__
    self.__uinput_fd = _libsuinput.suinput_open()
  File "/usr/local/lib/python2.7/dist-packages/uinput/__init__.py", line 64, in _error_handler
    raise OSError(code, os.strerror(code))
OSError: [Errno 13] Permission denied
spksoft@spksoft ~/code/python/Sample HI $ sudo python main.py
spksoft@spksoft ~/code/python/Sample HI $

這是與python交互的命令，可以正確移動光標。

spksoft@spksoft ~/code/python/Sample HI $ sudo python
Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import uinput
>>> import Tkinter as tk
>>> root = tk.Tk()
>>> screen_width = root.winfo_screenwidth()
>>> screen_height = root.winfo_screenheight()
>>> root.destroy()
>>> device = uinput.Device([
...         uinput.BTN_LEFT,
...         uinput.BTN_RIGHT,
...         uinput.REL_X,
...         uinput.REL_Y,
...         ])
>>> device.emit(uinput.REL_X, -1 * screen_width)
>>> device.emit(uinput.REL_Y, -1 * screen_height)
>>> 

測試視頻： Python-uinput光標確實移動了測試

Answer 1

至少在X11下，由於您的測試代碼如此突然完成，因此在代碼退出之前，沒有時間創建設備的處理程序。
僅針對代碼退出時的這些測試用例，解決方案是添加time.sleep()命令。
在實時運行條件下，這是不需要的。

import uinput
import Tkinter as tk
import time
root = tk.Tk()

screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
root.destroy()

device = uinput.Device([
         uinput.BTN_LEFT,
         uinput.BTN_RIGHT,
         uinput.REL_X,
         uinput.REL_Y,
         ])
def main():
    time.sleep(1)
    device.emit(uinput.REL_X, -1 * screen_width)
    device.emit(uinput.REL_Y, -1 * screen_height)
if __name__ == '__main__':
    main()