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Get a list of running applications

Posted on 2011-03-14
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Last Modified: 2012-05-11
I would like to know how i could get a list of applications running on Windows (only those who have a graphical window, not the process list).  

Anyone can help?

Thank you
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Comment
Question by:cdebel
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9 Comments
 
LVL 33

Accepted Solution

by:
Todd Gerbert earned 300 total points
ID: 35132005
I would imagine you can just loop through the entire process list looking for processes whose MainWindowHandle is not zero.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication1
{
	class Program
	{
		static void Main(string[] args)
		{
			foreach (Process p in Process.GetProcesses())
				if (p.MainWindowHandle != IntPtr.Zero)
					Console.WriteLine(p.ProcessName);
			Console.ReadKey();
		}
	}
}

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication1
{
	class Program
	{
		static void Main(string[] args)
		{
			List<Process> processes = Process.GetProcesses().Where(x => x.MainWindowHandle != IntPtr.Zero).ToList();
			foreach (Process p in processes)
				Console.WriteLine(p.ProcessName);
			Console.ReadKey();
		}
	}
}

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0
 
LVL 14

Assisted Solution

by:systan
systan earned 200 total points
ID: 35132120
The code;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.Diagnostics;

namespace WindowsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

       
        private void Form1_Load(object sender, EventArgs e)
        {
            Process current = Process.GetCurrentProcess();
            Process[] processes = Process.GetProcesses();

            Process ThisProcess = null;
            foreach (Process ThisProcess_loopVariable in processes)
            {
                ThisProcess = ThisProcess_loopVariable;
                if (ThisProcess.Id != current.Id)
                {
                    if (!string.IsNullOrEmpty(ThisProcess.MainWindowTitle))
                    {
                        listBox1.Items.Add(ThisProcess.ProcessName);
                    }
                }
            }

        }


    }
}

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0
 
LVL 33

Expert Comment

by:Todd Gerbert
ID: 35132200
@systan

Checking the MainWindowTitle isn't a good idea, it's entirely possible there will be applicatons open with forms that have no title.


@cdebel

If you want to exclude the current process (i.e. you don't want to find yourself), you can just tweak the code slightly:
int myId = Process.GetCurrentProcess().Id;
List<Process> processes = Process.GetProcesses().Where(x => x.Id != myId && x.MainWindowHandle != IntPtr.Zero).ToList();

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Or:
int myId = Process.GetCurrentProcess().Id;
foreach (Process p in Process.GetProcesses())
	if (p.Id != myId && p.MainWindowHandle != IntPtr.Zero)
		Console.WriteLine(p.ProcessName);

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0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 14

Expert Comment

by:systan
ID: 35132350
I think it's not a big deal,  depends where to used it; but it's much better and shorter.  Nice simple code.
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Globalization;

//for Process.GetCurrentProcess
using System.Diagnostics;

namespace WindowsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


    private void getwinlist()
    {
        int myId = Process.GetCurrentProcess().Id;
        foreach (Process p in Process.GetProcesses())
        if (p.Id != myId && p.MainWindowHandle != IntPtr.Zero)
        listBox1.Items.Add(p.ProcessName);  
    }


        private void Form1_Load(object sender, EventArgs e)
        {
            getwinlist();
        }


    }
}

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0
 
LVL 33

Expert Comment

by:Todd Gerbert
ID: 35132499
systan, that's almost word-for-word the code I just posted (http:#a35132200). ;)
0
 
LVL 10

Author Comment

by:cdebel
ID: 35134197
sorry guys i didn't had time to test the solutions, and it's late.  I'll test that tomorrow morning.

thanks
0
 
LVL 14

Expert Comment

by:systan
ID: 35135039
Yes, I told you that it's much better and shorter.  Nice simple code.
0
 
LVL 10

Author Comment

by:cdebel
ID: 35137566
ok i've just tried both codes.  They both work.

I'll attribute a bit more points to tgerbert version because i agree with him, an application might not have a window title.  It might be rare, but it's the case (ex: explorer.exe doesn't have any title, but it's important to list it in my case).
0
 
LVL 10

Author Closing Comment

by:cdebel
ID: 35137576
Thanks a lot to both of you
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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