How to hide Application Window when its EXE has been called from a Process?

Question

I'm running an application's EXE using a Class Library from a Service. But what i'm attempting to do is hide the application EXE's Window. Here is my code:

In my Class Library's function:-

public class MyClassLibrary
{
    public void MyFunction()
    {
        Process process = new Process();
        process.StartInfo.FileName = "C:\Program Files (x86)\MyFolder\MyApp.exe";
        process.StartInfo.CreateNoWindow = true;
        process.StartInfo.UseShellExecute = false;
        process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
        process.Start();
    }
}

And this is where i'm calling it from:

class MyClass : ServiceBase
{
    ...
    ...
    ...
    protected override void OnStart()
    {
        MyClassLibrary obj = new MyClassLibrary();
        obj.MyFunction();
    }
}

Despite all of the above, the window is yet seen. Can anyone please suggest a solution?

Thanks and Regards, Siddhant

Weird, that shouldn't happen. Also; is the interact with desktop setting for you service on or off? Check your Service properties — Gerald Versluis, Jul 13 '12 at 10:58
May be (C# - Launch Invisible Process [CreateNoWindow & WindowStyle not working?)](http://stackoverflow.com/questions/3011209/c-sharp-launch-invisible-process-createnowindow-windowstyle-not-working) helps — Arne, Jul 13 '12 at 11:16
@Arne - I tried this but it didn't work.. Thanx for helping out though.. :) — Siddhant, Jul 13 '12 at 11:40
@Siddhant I meant this setting; http://www.ozekisms.com/attachments/571/service_interact_with_desktop.gif — Gerald Versluis, Jul 13 '12 at 11:41
@GeraldVersluis - Oh.. Yeah, the check was off.. Turned it on.. But it still didn't help.. :-( — Siddhant, Jul 13 '12 at 11:49

score 0 · Answer 1 · answered Jul 13 '12 at 11:43

I have tried your code in does not work but

But when i try it this way it works fine

string filePath = @"C:\Program Files (x86)\Internet Explorer\iexplore.exe";    
ProcessStartInfo pStartInfo = new ProcessStartInfo(filePath );
pStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

Process.Start(startInfo);

Reason it works with Process.Start(ProcessStartInfo) because it associates the given information with a new component as explained on MSDN

score 0 · Answer 2 · edited May 23 '17 at 12:16

0

I've got the answer guys, thanks to this comment, which i got from Arne's comment at the top of this question.. Apparently it seems that the Process.StartInfo.UseShellExecute was supposed to be set to true.

Thanks everyone for helping out! Cheers!

edited May 23 '17 at 12:16

Community

1
1

answered Jul 13 '12 at 12:52

Siddhant

1,074
12
22

score 0 · Answer 3 · edited May 16 '16 at 11:23

0

string filePath = @"C:\Windows\System32\notepad.exe";
ProcessStartInfo pStartInfo = new ProcessStartInfo(filePath);

**pStartInfo.UseShellExecute = true;** 

pStartInfo.WindowStyle = ProcessWindowStyle.Hidden;   
Process.Start(pStartInfo);

Note: Set pStartInfo.UseShellExecute to true otherwise you get an error

edited May 16 '16 at 11:23

Smittey

2,475
10
28
35

answered May 16 '16 at 10:06

gupta123

11
2

How to hide Application Window when its EXE has been called from a Process?

3 Answers3