我如何发送键presses到正在运行的进程对象？

问题描述

我试图让C＃启动应用程序（在这种情况下，开放式办公），并开始发送该应用程序键presses这样，它会出现，就像有人在打字。所以，理想情况下，我将能够发送运行的开放式办公过程中的关键preSS字母D，与开放式办公会，然后输入d在纸张上。谁能给我方向，每如何去了解呢？我试图做到以下几点：

I am trying to make C# launch an application (in this case open office), and start sending that application keypresses such that it would appear as though someone is typing. So ideally, I would be able to send a running open office process the keypress for the letter "d", and open office would then type d on the paper. Can anyone give me direction as per how to go about this? I have tried to do the following:

p = new Process();
p.StartInfo.UseShellExecute = true;
p.StartInfo.CreateNoWindow = false;
p.StartInfo.FileName = processNames.executableName;

p.Start();

p.StandardInput.Write("hello");

但是，这并不让我想要的效果 - 我没有看到文字输入在开放式办公

But that doesn't get me the desired effect - I don't see the text typed out in open office.

推荐答案

您必须通过Win32的sendmessages做到这一点：其基本思路是这样的：

You have to do this via Win32 sendmessages: The basic idea is like this:

拳，你需要一个指向启动的过程窗口：

Fist you need a pointer to the launched process window:

using System.Runtime.InteropServices;

[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

private void button1_Click(object sender, EventArgs e)
{
  // Find a window with the name "Test Application"
  IntPtr hwnd = FindWindow(null, "Test Application");
}

然后用SendMessage函数或PostMessage的（preferred你的情况我猜）：

then use SendMessage or PostMessage (preferred in your case I guess):

http://msdn.microsoft。 COM / EN-US /库/ ms644944（V = VS.85）的.aspx

在此消息指定了正确的消息类型（例如WM_KEYDOWN）发送键preSS：

In this message specify the correct message type (e.g. WM_KEYDOWN) to send a keypress:

http://msdn.microsoft.com/ EN-US /库/ ms646280（VS.85）的.aspx

看一看 PInvoke.net 得到的PInvoke源$ C ​​$ C。

Have a look at PInvoke.net to get PInvoke sourcecode.

另外，您可以使用FindWindow函数来使该窗口前台后使用SendKeys.Send（.NET）方法。不过，有点不可靠的。

Alternatively you can use the SendKeys.Send (.Net) method after using FindWindow to bring that window to the foreground. However that is somewhat unreliable.

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