How to get list of running processes in C#?

Process class provides GetProcess method to get all running processes. The GetProcesses method returns collection of process. Similarly GetCurrentProcess method returns currently running process. Process class is available in System.Diagnostics namespace. 


Let’s have a look on below code.

void ProcessThreads_Loaded(object sender, RoutedEventArgs e)

{

    foreach (Process p in Process.GetProcesses())

        Console.WriteLine("{0} | {1} | {2}", p.ProcessName, p.Id, p.Threads.Count);

    Console.WriteLine("Current Process");

    Process current = Process.GetCurrentProcess();

    Console.WriteLine("{0} | {1} | {2}", current.ProcessName, 
                       current.Id, current.Threads.Count);

}

Output

svchost | 616 | 13

SearchIndexer | 3344 | 14

lsm | 584 | 12

spoolsv | 1764 | 13

COH32 | 5112 | 3

WPFTestApplication.vshost | 2660 | 14

lsass | 576 | 9

RegSrvc | 2348 | 4

COH32 | 4908 | 1

SNAC | 1360 | 13

services | 568 | 6

explorer | 5884 | 26

svchost | 956 | 19

iexplore | 756 | 16

ccSvcHst | 1540 | 36

svchost | 3704 | 5

rundll32 | 3868 | 2

…

…

…

Current Process

WPFTestApplication.vshost | 2660 | 14

The above output displays all the processes with its name, id and total thread count. The last line displays currently running process.

Displaying Process Threads

We can get list of all the threads running under process using Threads collection of Process instance. Let’s have a look on below code.

void ProcessThreads_Loaded(object sender, RoutedEventArgs e)

{

    foreach (Process p in Process.GetProcesses())

    {

        Console.WriteLine("{0} | {1} | {2}", p.ProcessName, p.Id, p.Threads.Count);

        DisplayThreads(p);

    }

}

private void DisplayThreads(Process p)

{

    foreach (ProcessThread thread in p.Threads)

    {

        Console.WriteLine("          {0} | {1} | {2} | {3}", thread.Id,

            thread.PriorityLevel, thread.ThreadState, thread.TotalProcessorTime);

    }

}

Output

wininit | 468 | 3

          472 | Highest | Wait | 00:00:00.4992032

          556 | Normal | Wait | 00:00:00

          564 | Normal | Wait | 00:00:00

LMS | 1252 | 8

          1304 | Normal | Wait | 00:00:00.0468003

          1336 | Normal | Wait | 00:00:00

          1924 | Normal | Wait | 00:00:00.2496016

          2072 | Normal | Wait | 00:00:00.0624004

          2180 | Normal | Wait | 00:00:08.6424554

          1692 | Normal | Wait | 00:00:00

          5552 | Normal | Wait | 00:00:00

          3700 | Normal | Wait | 00:00:00

…

…

…

Above code displays list of processes along with their ProcessThreads.

See Also – 
How to create custom Application Domain?
How to get system hardware information?
How to pass data as an argument to Thread?