AssignProcessToJobObject无法将进程添加到作业对象 [英] AssignProcessToJobObject fails to add process to job object

问题描述

您好！

我正在努力使用JobObject（C＃/ Win7），以便以最简单的方式使其工作。

I am struggling with JobObject (C#/Win7) to make it work even in the simplest way.

目标是启动一些进程，将它们放入一个作业，然后调用TerminateJobObject（）来结束所有进程。

The goal is to start a few processes, put them into one job and then call TerminateJobObject() to end all the processes.

根据文档，如果使用InPtr.Zero - 默认JobObject的属性是允许/支持终止。

According to the docs if InPtr.Zero is used - the default properties for the JobObject is that termination is allowed/supported.

代码非常简单，AddProcessToJobObject失败。

The code is very simple, AddProcessToJobObject fails.

        private IntPtr handle;
        public MyJobObject()
        {
            handle = CreateJobObject(IntPtr.Zero, null);
        }
        public bool AddProcess(int processId)
        {
            bool r = AssignProcessToJobObject(handle, Process.GetProcessById(processId).Handle);
            return r;
        }
        public bool Terminate()
        {
            bool r = TerminateJobObject(handle, 1);
            CloseHandle(handle);
            return r;
        }

创建流程很简单：

The process creation is simple:

        public static int StartOne()
        {
            Process process = new System.Diagnostics.Process();
//            ProcessStartInfo startInfo = new ProcessStartInfo("cmd.exe", "/K");
            ProcessStartInfo startInfo = new ProcessStartInfo("notepad.exe", "");
            startInfo.WindowStyle = ProcessWindowStyle.Normal;
            startInfo.UseShellExecute = false;
            startInfo.RedirectStandardOutput = false;
            process.StartInfo = startInfo;
            process.Start();
            return process.Id;
        }

并且有一个简单的WinForm应用程序可以使用3个按钮进行测试：

and there is a simple WinForm app to test this with 3 buttons:

        private void buttonOpenJob_Click(object sender, EventArgs e)
        {
            m_Job = new MyJobObject();
            int pid = Process.GetCurrentProcess().Id;
        }

        private void buttonStartProcess_Click(object sender, EventArgs e)
        {
            if (m_Job != null)
            {
                int proc = MyProcesses.StartOne();
                m_Job.AddProcess(proc);
            }
        }

        private void buttonCloseJob_Click(object sender, EventArgs e)
        {
            if (m_Job != null)
            {
                m_Job.Terminate();
                m_Job = null;
            }
        }

那么我错过了什么？ 
$
它是在JobObject端还是进程 - 创作方？

So what did I miss? 
Is it on the JobObject side or the process-creation side?

提前致谢！

Pete

推荐答案

没人？我认为这是一个非常好的和强大的功能 - 只是没能使它工作...

Nobody? I thought that this is a very nice and powerful feature - just failed to make it work...

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