[2005] Minimize All?

I am making a screen locker program. But i have hit a block, I don't know how to Minimize all other programs.

I have tried a sample that I found in vb6 but it didnt work.
Code: http://www.freevbcode.com/ShowCode.Asp?ID=601

Also, if anyone knows how to hide the desktop icons & start bar that would save me some time.

before you get too far into this project, are you making this just for fun?

It is next to impossible to create a real screen locking program in .NET, as you can't hook ctrl+alt+delete to prevent it from being used to simply close your program.

You can search high and low for code to disable ctrl+alt+delete, but it doesn't really work on newer NT based systems, they are generally shoddy hacks that change registry settings on the user.

here is the code to do it either way.

It works with option strict coding on.

I only tested it on XP, and I imagine it may not work on some older systems.

VB Code:

Dim MyShell As Object = Nothing
        Dim MyType As Type = Type.GetTypeFromCLSID(New Guid("13709620-C279-11CE-A49E-444553540000"))
        MyShell = MyType.InvokeMember(Nothing, BindingFlags.CreateInstance Or BindingFlags.Default, Nothing, Nothing, Nothing)
        MyType.InvokeMember("ToggleDesktop", BindingFlags.Default Or BindingFlags.InvokeMethod, Nothing, MyShell, Nothing)