从另一个运行的应用程序读取输出 [英] Reading output from another running application
问题描述
我工作在C＃中的自定义IDE的脚本语言，我有一个问题。
我试图启动编译器进程（pawncc .EXE）和参数传递给它。我这样做，现在我有一个问题。当我想显示来自编译应用程序的输出，它只是显示它的某些部分。它应该输出这个（得到这个从命令提示符）：
典当编译器3.2.3664版权所有（C）1997-2006，ITB CompuPhase
newGM.pwn（0）：致命错误100：无法从文件读取：包括/ main_include.inc
编译中止。
1错误。
但事实并非如此。它输出这个（在应用程序中，使用相同的命令/参数）：
典当编译器3.2 0.3664版权所有（C）1997-2006，ITB CompuPhase
1错误。
我只是不明白这一点！这是一个非常奇怪的事情。这可能是简单的东西，但我一直在看它，现在研究了好几个小时！这里是我的代码：
公共Form3（字符串路径）
{
的InitializeComponent（）;
this._path =路径;
流程myProcess =新工艺（）;
的ProcessStartInfo的StartInfo =新的ProcessStartInfo（pawncc.exe）;
startInfo.CreateNoWindow = TRUE;
startInfo.UseShellExecute = FALSE;
startInfo.RedirectStandardOutput = TRUE;
startInfo.Arguments =路径+-r-D2
myProcess.StartInfo = StartInfo的;
myProcess.Start（）;
，而（真）
{
串的myString;
字节[]缓冲区=新的字节[512];
变种芳= myProcess.StandardOutput.BaseStream.BeginRead（缓冲液，0，512，NULL，NULL）;
ar.AsyncWaitHandle.WaitOne（）;
变种读取动作= myProcess.StandardOutput.BaseStream.EndRead（AR）;
如果（读取动作大于0）
{
的myString = Encoding.ASCII.GetString（缓冲液，0，读取动作）;
}
，否则
{
myProcess.WaitForExit（）;
中断;
}
richTextBox1.Text = myString的;
}
}
！编辑：
它确实与此代码同样的事情：
公共Form3（字符串路径）
{
的InitializeComponent（）;
this._path =路径;
流程myProcess =新工艺（）;
的ProcessStartInfo的StartInfo =新的ProcessStartInfo（pawncc.exe）;
startInfo.CreateNoWindow = TRUE;
startInfo.UseShellExecute = FALSE;
startInfo.RedirectStandardOutput = TRUE;
startInfo.RedirectStandardError = TRUE;
startInfo.Arguments =路径+-r-D2
myProcess.StartInfo = StartInfo的;
myProcess.Start（）;使用（StreamReader的读者= myProcess.StandardOutput）
{
字符串结果
= reader.ReadToEnd（）;
richTextBox1.Text =结果;
}
}
您需要重定向标准错误流，以及：
startInfo.RedirectStandardError = TRUE;
编辑：我刚刚回顾了代码，发现你只是只读的StandardOutput流。
我一般监控都使用的过程中，DataReceived事件并添加结果到一个StringBuilder，然后存储在StringBuilder的内容标准和错误输出流的过程UI元素：
私有静态System.Text.StringBuilder m_sbText;
公共Form3（字符串路径）
{
的InitializeComponent（）;
this._path =路径;
流程myProcess =新工艺（）;
的ProcessStartInfo的StartInfo =新的ProcessStartInfo（pawncc.exe）;
startInfo.CreateNoWindow = TRUE;
startInfo.UseShellExecute = FALSE;
startInfo.RedirectStandardOutput = TRUE;
startInfo.RedirectStandardError = TRUE;
startInfo.Arguments =路径+-r-D2
myProcess.StartInfo = StartInfo的;
m_sbText =新System.Text.StringBuilder（1000）;
myProcess.OutputDataReceived + = ProcessDataHandler;
myProcess.ErrorDataReceived + = ProcessDataHandler;
myProcess.Start（）;
myProcess.BeginOutputReadLine（）;
myProcess.BeginErrorReadLine（）;
在
{
System.Threading.Thread.Sleep（500）（myProcess.HasExited！）;
System.Windows.Forms.Application.DoEvents（）;
}
RichTextBox1.Text = m_sbText.ToString（）;
}
私有静态无效ProcessDataHandler（对象sendingProcess，DataReceivedEventArgs轮廓）
{
//收集net view命令的输出。
如果（！String.IsNullOrEmpty（outLine.Data））
{
//将文本添加到收集输出。
m_sbText.AppendLine（outLine.Data）;
}
}
有显然对这个变化，但这应该得到你开始。
I'm working on a custom IDE in C# for a scripting language, and I have a problem.
I'm trying to start the compiler process (pawncc.exe) and pass arguments to it. I've done that, and now I have a problem. When I want to display the output from the compiler application, it only displays some parts of it. It should output this (got this from the command prompt):
Pawn compiler 3.2.3664 Copyright (c) 1997-2006, ITB CompuPhase
newGM.pwn(0) : fatal error 100: cannot read from file: "includes/main_include.inc"
Compilation aborted.
1 Error.
But it doesn't. It outputs this (in the application, using the same command/arguments):
Pawn compiler 3.2.3664 Copyright (c) 1997-2006, ITB CompuPhase
1 Error.
I just don't get it! It's a really weird thing. It might be something simple but I've been looking at it, and researching for hours now! Here's my code:
public Form3(string path)
{
InitializeComponent();
this._path = path;
Process myProcess = new Process();
ProcessStartInfo startInfo = new ProcessStartInfo("pawncc.exe");
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
startInfo.RedirectStandardOutput = true;
startInfo.Arguments = path + " -r -d2";
myProcess.StartInfo = startInfo;
myProcess.Start();
while (true)
{
string myString;
byte[] buffer = new byte[512];
var ar = myProcess.StandardOutput.BaseStream.BeginRead(buffer, 0, 512, null, null);
ar.AsyncWaitHandle.WaitOne();
var bytesRead = myProcess.StandardOutput.BaseStream.EndRead(ar);
if (bytesRead > 0)
{
myString = Encoding.ASCII.GetString(buffer, 0, bytesRead);
}
else
{
myProcess.WaitForExit();
break;
}
richTextBox1.Text = myString;
}
}
!!EDIT:
It does the same thing with this code:
public Form3(string path)
{
InitializeComponent();
this._path = path;
Process myProcess = new Process();
ProcessStartInfo startInfo = new ProcessStartInfo("pawncc.exe");
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.Arguments = path + " -r -d2";
myProcess.StartInfo = startInfo;
myProcess.Start();
using (StreamReader reader = myProcess.StandardOutput)
{
string result = reader.ReadToEnd();
richTextBox1.Text = result;
}
}
You need to redirect the standard error stream as well:
startInfo.RedirectStandardError = true;
Edit: I just reviewed the code and discovered that you are only readonly the StandardOutput stream.
I generally monitor the process for both the standard and error output streams using the DataReceived events on the process and adding the results into a stringbuilder, then storing the StringBuilder content in the UI element:
private static System.Text.StringBuilder m_sbText;
public Form3(string path)
{
InitializeComponent();
this._path = path;
Process myProcess = new Process();
ProcessStartInfo startInfo = new ProcessStartInfo("pawncc.exe");
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.Arguments = path + " -r -d2";
myProcess.StartInfo = startInfo;
m_sbText = new System.Text.StringBuilder(1000);
myProcess.OutputDataReceived += ProcessDataHandler;
myProcess.ErrorDataReceived += ProcessDataHandler;
myProcess.Start();
myProcess.BeginOutputReadLine();
myProcess.BeginErrorReadLine();
while (!myProcess.HasExited)
{
System.Threading.Thread.Sleep(500);
System.Windows.Forms.Application.DoEvents();
}
RichTextBox1.Text = m_sbText.ToString();
}
private static void ProcessDataHandler(object sendingProcess, DataReceivedEventArgs outLine)
{
// Collect the net view command output.
if (!String.IsNullOrEmpty(outLine.Data))
{
// Add the text to the collected output.
m_sbText.AppendLine(outLine.Data);
}
}
There are obviously variations on this, but this should get you started.
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