how do you check if a process is running?

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Hi, I want to make a simple program that checks for a process and if it is running a messagebox will appear. Here is what I got so far but it doesn't show the messagebox.

C#

private void Form1_Load(object sender, EventArgs e)
       {
           foreach(Process pro in Process.GetProcesses("notepad")) {

               if( pro.ProcessName.Contains("notepad"))
               {
                   MessageBox.Show("hi");
               }

Thanks for the help in advance.

Posted 10-May-12 10:33am

MR. AngelMendez

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Sergey Alexandrovich Kryukov 10-May-12 16:49pm

Please see my answer and please ask yourself: is there anything that MSDN would not tell you?
--SA

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Wendelius · Accepted Answer · 2012-05-10T10:43:00

Solution 1

Looks a bit odd. The GetProcesses with a string parameter searches for processes on the machine passed as the parameter, see: http://msdn.microsoft.com/en-us/library/x8b2hzk8.aspx[^].

You could try Process.GetProcessesByName Method (String)[^] instead.

Posted 10-May-12 10:43am

Wendelius

Comments

Sergey Alexandrovich Kryukov 10-May-12 16:57pm

Absolutely. A pointless "if". Right fix, my 5.
But the code is pretty much pointless. What is there is another application named "notepad"? However, I understand that it could be some research, for learning how things work...

By the way, I answered the question itself, as you can see.
--SA

Wendelius 11-May-12 0:47am

Thanks SA :)

MR. AngelMendez 10-May-12 17:04pm

My solution worked I just needed to run notepad first before running my application. Thanks for the help though I will be using your references later.

Wendelius 11-May-12 0:51am

Glad you got it working. However, you should go through the references, especially the GetProcesses :)

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-05-10T10:48:00

You can use the property System.Diagnostics.Process.HasExited. Pay attention for the exceptions this call can throw — it can help you to cover remaining situations, such as when the process has not been started, etc.:
http://msdn.microsoft.com/en-us/library/system.diagnostics.process.hasexited.aspx[^].

In most cases, you should not check the process status but should simply make a blocking call waiting for the process to start: Process.WaitForExit. Needless to say, in this case you should work with a process in a separate thread.

Please see: http://msdn.microsoft.com/en-us/library/system.diagnostics.process.aspx[^].

—SA