[C#] System.Diagnostics.Process

Discussion in 'Mixed Languages' started by S_A_S, Dec 5, 2012.

  1. S_A_S

    S_A_S MDL Member

    Oct 16, 2012
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    Hi,

    Hope that somebody can enlighten me...

    What's the difference between System.Diagnostics.Process and System.Diagnostics.ProcessStartInfo ?

    I've been browsing the www the last couple of day, trying to understand how C# works, but can't see the trees through the forest ;)

    Noticed though that .Process is mainly used to call .vbs, and .ProcessStartInfo for CMD.

    Regards.
     
  2. Josh Cell

    Josh Cell MDL Developer

    Jan 8, 2011
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    Two different classes for working with processes.

    In a first moment, ProcessStartInfo is enrolled with the Process class.
     
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  3. S_A_S

    S_A_S MDL Member

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    #3 S_A_S, Dec 5, 2012
    Last edited: Dec 5, 2012
    (OP)
    So which is the correct one to use for calling cmd.exe or slmgr.vbs?

    Also noticed differences in the line when it's used.

    example:

    1)
    System.Diagnostics.Process Port = new System.Diagnostics.Process();
    Port.StartInfo.FileName = @"C:\Windows\System32\cmd.exe";
    Port.StartInfo.Arguments = "/c netstat -a";
    Port.Start();

    2)
    System.Diagnostics.ProcessStartInfo Port = new System.Diagnostics.ProcessStartInfo("cmd", "/c netstat -a");

    Both doing the same thing.
     
  4. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    ok you know that Port.Startinfo is just the ProcessStartInfo class \ struct

    you can create a process with it like this

    Port.Start(ProcStartInfo);

    or do it the way you did..

    in the post above :D
     
  5. Josh Cell

    Josh Cell MDL Developer

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    #5 Josh Cell, Dec 5, 2012
    Last edited by a moderator: Apr 20, 2017
    ProcessStartInfo is one enrolled class. It only will work as dependant for the Process class, such as:

    Code:
    ProcessStartInfo startInfo = new ProcessStartInfo("IExplore.exe"); //Initializing the startInfo object.
    startInfo.WindowStyle = ProcessWindowStyle.Minimized; //Adding the WindowStyle property.
    startInfo.Arguments = "http://forums.mydigitallife.net"; //Adding the Arguments property.
    Process.Start(startInfo); //Starting a new process using the startInfo properties...
     
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  6. S_A_S

    S_A_S MDL Member

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    #6 S_A_S, Dec 6, 2012
    Last edited: Dec 6, 2012
    (OP)
    VS doesnt let me take those shortcuts (eg ProcessStartInfo startInfo = new ProcessStartInfo) in WFA, it wants me to always append System.Diagnostics.

    But i guess that i'm on the right track, just need to do some more digging...

    By the way, how can i run a elevated command, "runas" doesnt work, trows me a "OneClick app can not run as administrator" error, and from what i find on the www is that MS implemeted that restriction.
     
  7. Calistoga

    Calistoga MDL Senior Member

    Jul 25, 2009
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    #7 Calistoga, Dec 6, 2012
    Last edited by a moderator: Apr 20, 2017
    Add this to the top of your code file:
    Code:
    using System.Diagnostics;
     
  8. Josh Cell

    Josh Cell MDL Developer

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    #8 Josh Cell, Dec 6, 2012
    Last edited by a moderator: Apr 20, 2017
    You need of run your main executable as administrator to automatically invoke other processes with administrator level.

    Here's the way to elevate it programatically:

    Code:
                    ProcessStartInfo proc = new ProcessStartInfo();
                    proc.UseShellExecute = true;
                    proc.WorkingDirectory = Environment.CurrentDirectory;
                    proc.FileName = Application.ExecutablePath;
                    proc.Verb = "runas";
     
                    try
                    {
                        Process.Start(proc);
                    }
                    catch
                    {
                        // The user refused the elevation.
                        // Do nothing and return directly ...
                        return;
                    }
                    Application.Exit();  // Quit itself
    Ah, if you're trying to execute shortcuts, you need of set this property:

    Code:
     proc.UseShellExecute = true;
     
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  9. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    remove the publishing bindings from your program or uncheck the sign the click once manifests. sounds like you are using visual studio 2008 :p
     
  10. S_A_S

    S_A_S MDL Member

    Oct 16, 2012
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    VS Pro 2012
     
  11. Dermot

    Dermot MDL Novice

    Mar 14, 2011
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    #11 Dermot, Aug 29, 2013
    Last edited by a moderator: Apr 20, 2017
    Code:
    Process.Start("Runas"," /user:" + Environment.UserName + " whatever.exe");
    
    This will prompt for the admin password before executing the application as administrator

    Just another way to do it i suppose.