在.NET中查找进程树

问题描述

我正在寻找一种简单的方法，以C＃或其他.NET语言查找过程树（如Process Explorer之类的工具所示）。查找另一个进程的命令行参数也很有用（System.Diagnostics.Process上的StartInfo似乎对当前进程以外的其他进程无效）。

I'm looking for an easy way to find the process tree (as shown by tools like Process Explorer), in C# or other .NET language. It would also be useful to find the command-line arguments of another process (the StartInfo on System.Diagnostics.Process seems invalid for process other than the current process).

我认为这些事情只能通过调用win32 api来完成，但是我很高兴被证明是错误的。

I think these things can only be done by invoking the win32 api, but I'd be happy to be proved wrong.

推荐答案

如果您不想P / Invoke，则可以使用性能计数器来获取父ID：

If you don't want to P/Invoke, you can grab the parent Id's with a performance counter:

foreach (var p in Process.GetProcesses())
{
   var performanceCounter = new PerformanceCounter("Process", "Creating Process ID", p.ProcessName);
   var parent = GetProcessIdIfStillRunning((int)performanceCounter.RawValue);
   Console.WriteLine(" Process {0}(pid {1} was started by Process {2}(Pid {3})",
              p.ProcessName, p.Id, parent.ProcessName, parent.ProcessId );
}

//Below is helper stuff to deal with exceptions from
//looking-up no-longer existing parent processes:

struct MyProcInfo
{
    public int ProcessId;
    public string ProcessName;
}

static MyProcInfo GetProcessIdIfStillRunning(int pid)
{
    try
    {
        var p = Process.GetProcessById(pid);
        return new MyProcInfo() { ProcessId = p.Id, ProcessName = p.ProcessName };
    }
    catch (ArgumentException)
    {
        return new MyProcInfo() { ProcessId = -1, ProcessName = "No-longer existant process" };
    }
}

现在只需将其放入所需的任何树结构中就可以了。

now just put it into whatever tree structure want and you are done.

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