How to properly hide process?

Question

0.00/5 (No votes)

See more:

I m using these five lines of code, for another process, but somehow it is still not hidden, or to say it is still visible in window. Do you know what line of code am i missing?

What I have tried:

Dim myprocess As Process = New Process()
myprocess.StartInfo.FileName = "SW.exe"
myprocess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
myprocess.StartInfo.UseShellExecute = True
myprocess.StartInfo.CreateNoWindow = True
myprocess.Start()
myprocess.WaitForExit()

Posted 30-Mar-20 10:22am

Marc Kane

Updated 31-Mar-20 3:02am

v3

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Alan N · Answer 1 · 2020-03-31T03:03:00

There's nothing wrong with that code but it is possible that SW.exe is ignoring the startup state 'request' from the operating system. For example a GUI windows application written with a System.Windows.Forms.Form and a Load event handler with the following code will ignore ProcessWindowStyles from Process.Start(...). It will always show as Normal.

C#

protected override void Form_Load(Object sender EventArgs e) {
  WindowState = FormWindowState.Normal;
}

A simple way of testing if your SW.exe is going to behave as you would wish is to start it via a shortcut. Modify the shortcut properties and set Run to either Maximised or Minimised. If that has no effect then SW.exe is ignoring ProcessWindowStyles.

Alan.

OriginalGriff · Answer 2 · 2020-03-30T10:41:00

Solution 1

ProcessWindowStyle.Hidden doesn't hide a process - you can't do that - it just doesn't display a window by not actually drawing it at all.

A process doesn't have to have a window so it can be "invisible" on screen, but it does have to have a thread and a process space in which to run it and those will always appear in the Process list of Task Manager.

Posted 30-Mar-20 10:41am

OriginalGriff

Comments

Marc Kane 30-Mar-20 16:55pm

Yes, i am aware of that, but with this code it is visible, and i dont want that, so im trying to figure out the reason why it is still displayed