Vb.net losing keyboard input, focus on main program.

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Hi all,
I have a VB.net program that runs for 24 hours and scans a directory for files then displays the results in a RichTextBox window when they are present.
The user presses a key on the keyboard once the contents are viewed and clears the RTB and deletes the file.

My "program" will occasionally lose focus and the keyboard input is redirected away from the main Program.

A mouse is not connected so the user is not clicking on another program or portion of the screen.

This program restarts automatically at 4am daily and it's hit or miss if the keyboard stays connected to my program.

This application is the only program running on this computer.
I've checked for windows scheduled tasks, there are some google updates and a few other update applications running. Short of deleting them I'd like find a way to regain focus of the keyboard.

Cheers,
KB

What I have tried:

I have this at program startup and during the file scanning procedure with no results.
  Me.FormBorderStyle = Windows.Forms.FormBorderStyle.None
  Me.WindowState = FormWindowState.Maximized
  Me.TopMost = True

If I click on the program the keyboard will continue to work.

Posted 21-Mar-22 5:15am

Member 13795806

Updated 21-Mar-22 5:31am

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OriginalGriff · Answer 1 · 2022-03-21T05:31:00

Have you tried handling the Form.Deactivate Event (System.Windows.Forms) | Microsoft Docs[^]?
You could then set the focus to your app again. I haven't tried it - if it fails it might be hard to do anything else with the computer short of pulling the mains plug - but this seems to explain the process: Bring an application to front with CSharp – Shatter-Box[^] - it's C#, but you should be able to get it working in VB.

Member 13795806 · Answer 2 · 2022-03-21T05:30:00

Solution 1

I found the answer Me.Activate()

Posted 21-Mar-22 5:30am

Member 13795806