如何在 c# 中获取当前活动进程的持续时间？答案

【问题标题】：How to get duration with the current active processes in c#?如何在 c# 中获取当前活动进程的持续时间？
【发布时间】：2016-06-22 14:17:02
【问题描述】：

有没有办法知道在 c# 中打开的当前窗口的窗口名称和持续时间，并在窗口关闭时获得回调？

【问题讨论】：

How can I list all processes running in Windows?的可能重复

标签： c#

【解决方案1】：

using System.Diagnostics;

Process[] processlist = Process.GetProcesses();

foreach (Process process in processlist)
{
    if (!String.IsNullOrEmpty(process.MainWindowTitle))
        Console.WriteLine("Process: {0} ID: {1} Window title: {2}" duration: {3}" , process.ProcessName, process.Id, process.MainWindowTitle, process.duration);
}

// i'm not sure if process.duration actually exists but it would be something like that

【讨论】：

【解决方案2】：

是的，使用 Process 类您可以获得该信息。

using System.Diagnostics;

public void GetProcessesInfo()
{
    Process[] allProcesses = Process.GetProcesses();

    foreach (Process process in allProcesses)
    {
        try
        {
            string windowName = process.MainWindowTitle;
            TimeSpan duration = DateTime.Now - process.StartTime;
            process.EnableRaisingEvents = true;
            process.Exited += new EventHandler(process_Exited);
        }
        catch(System.ComponentModel.Win32Exception)
        {
            //access to that process was denied
        }
    }
}

void process_Exited(object sender, EventArgs e)
{
    //a process has exited
}

【讨论】：