Python 如何使用 SendKeys 将模拟键盘敲击发送到活动窗口
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How to send simulated keyboard strokes to the active window using SendKeys
提问by pat
I am new to Python and am trying to send a combination of key strokes to an application I open under Windows 7. While my script will work flawlessly when I invoke Notepad.exe for testing purposes, it does not with the actual application I am trying to use.
我是 Python 新手，正在尝试将按键组合发送到我在 Windows 7 下打开的应用程序。虽然当我出于测试目的调用 Notepad.exe 时，我的脚本可以完美运行，但它不适用于我正在尝试的实际应用程序使用。
Here is my code so far:
到目前为止，这是我的代码：
import win32com.client
import time
import SendKeys
import os
from ctypes import *
shell = win32com.client.Dispatch("WScript.Shell")
os.startfile("C:\...exe")
time.sleep( 5 )
shell.SendKeys('%{F4}') # 'Alt+F4' to close the application again.
For some reason, the application does not close in reaction to the script. When I hit 'Alt + F4' on my keyboard, it closes as expected. Any ideas on what might be going on here?
出于某种原因，应用程序不会响应脚本而关闭。当我在键盘上按下“Alt + F4”时，它会按预期关闭。关于这里可能发生什么的任何想法？
Any help is welcome! Please bear in mind that I am new to Python ;-)
欢迎任何帮助！请记住，我是 Python 新手；-)
PS: I have already verified that the application runs in the active window by including this code snippet:
PS：我已经通过包含以下代码片段验证了该应用程序在活动窗口中运行：
import win32ui
wnd = win32ui.GetForegroundWindow()
print wnd.GetWindowText()
回答by pat
OK ... I rebooted the system and for some reason it is working now. I am wondering if some process instance from previous programme invocations might have been lingering on the system. Anyway, I am now able to perform the manipulations as expected, even if I don't really understand what went wrong in the first place.
好的...我重新启动了系统，出于某种原因它现在可以工作了。我想知道之前程序调用中的某些流程实例是否可能一直留在系统中。无论如何，我现在可以按预期执行操作，即使我一开始并不真正了解出了什么问题。
Thanks to everyone who took the time to repsond.
感谢所有花时间回复的人。
回答by Lucas Ribeiro Alves
I know this was asked 6 years ago, but someone might be with the same problem, so here is a possible solution:
我知道这是 6 年前问过的，但有人可能遇到同样的问题，所以这里有一个可能的解决方案：
shell.AppActivate('Put_The_Name_Here')
shell.AppActivate('Put_The_Name_Here')
The code above will select the program, file, etc that is opened but not activated, that, maybe, is your problem.
上面的代码将选择打开但未激活的程序、文件等，这可能是您的问题。
Hope this helps someone!
希望这可以帮助某人！
