如何从exe或DLL获取返回值到另一个应用程序 [英] How do I get the return value from exe or DLL into another application

问题描述

我有一个WPF表单，它有一个按钮和一个文本框，当我点击它需要打开一个winform exe，它有一个列表框，列表框中选中的项目应该返回到WPF Form文本框，< br $> b $ b

我尝试过：



WPF按钮代码

I have a WPF form which has a button and a textbox, when i click the button it needs to open a winform exe which has a list box, the items selected in the listbox should be returned to the WPF Form textbox,

What I have tried:

WPF BUTTON CODE

System.Diagnostics.ProcessStartInfo p = new System.Diagnostics.ProcessStartInfo();
            //System.Diagnostics.Process p = new System.Diagnostics.Process();
            p.UseShellExecute = false;
            p.RedirectStandardOutput = true;
            p.FileName= System.IO.Path.GetDirectoryName(GeneralActivities.ExecutionPath) + "\\MYTESTAPP.exe";

            try
            {
                using (System.Diagnostics.Process startprocess = System.Diagnostics.Process.Start(p))
                {
                    startprocess.WaitForExit();
                    string output = startprocess.StandardOutput.ReadToEnd();
                    
                    MessageBox.Show(output);
                }
            }

推荐答案

这样的事情：

Something like this:

using (System.Diagnostics.Process p = new System.Diagnostics.Process())
{
	p.StartInfo = new System.Diagnostics.ProcessStartInfo(System.IO.Path.GetDirectoryName(GeneralActivities.ExecutionPath) + "\\MYTESTAPP.exe");
	p.StartInfo.CreateNoWindow = true;
	p.StartInfo.ErrorDialog = false;
	p.StartInfo.RedirectStandardError = true;
	p.StartInfo.RedirectStandardInput = true;
	p.StartInfo.RedirectStandardOutput = true;
	p.StartInfo.UseShellExecute = false;
	p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
	p.Start();
	System.Threading.Thread.Sleep(10000); // for testing ...

	if (!p.HasExited)
	{
		p.WaitForExit(120000); // wait 2 minutes to finish
		if (!p.HasExited)
		{
			p.Kill();
		}
	}

	string output = p.StandardOutput.ReadToEnd();
}

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