Vb Code to lock computer after certain time.

7 posts · originally from https://geek.digit.in/community/threads/vb-code-to-lock-computer-after-certain-time.158495/

hi
i want VB code to lock computer based on time set (like 1 or 2 hour).
and also i want to lock desktop wallpaper.
any one give code please.

any specific reason to use vb..

your tasks can easily be done with task scheduler & group policy editor.. available on all windows pcs

i like to create in UI friendly. i googled about that but all of did just lock the screen, but i want specify the time as per my need.

There's also some freeware that can do the job of locking the computer too. I think it has the same VB code if I'm not mistaken..

Thanks for your suggestion, see the form i want to code that form.
*lh5.googleusercontent.com/-9w4D5ND1a0s/T9lVeMxPAVI/AAAAAAAAAdo/HwzC3ts-Th0/s451/lock%2520screen.jpg
i found lots of tutorial to lock the computer screen, but what i want is to lock the screen in specified time any one created that before in school or college projects.

i want to save the check box state (checked or unchecked). whenever i closed and open the form the check boxes are not selected how to save the settings?

I abhor VB, but the thing can be done in VB.NET & C#.NET as

Code:

Process.Start(@"C:\WINDOWS\system32\rundll32.exe",  "user32.dll,LockWorkStation");

Which is nothing but calling rundll32.exe with a set of parameters, which in turn hooks to user32.dll ergo calling LockWorkStation() of the Windows API.

If this is too much hassle, you can opt to dllimport user32.dll's LockWorkStation() directly into your project.

Regarding post #2,

If the form is the Main form, you'll have to use persistence to manually read & write settings to the disk. If the form is a secondary/child form, you can hook it's OnClosing() event to instead Hide() it, ..... or you can save its settings in the parent form.