Visual Basic 6 - How to Hide Application in Windows Task List

This code will hide your application in windows tasklist using visual basic when user press the ctr + alt + delete in keyboard. This type of program is very useful if you don't want your users/clients to close the application through windows tasklist. 

Here's the code sample below.

Declare Function SetWindowPos Lib "user32" (ByVal hwnd _

As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, _

ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal _

wFlags As Long) As Long

Declare Function FindWindow Lib "user32" Alias _

"FindWindowA" (ByVal lpClassName As String, ByVal _

lpWindowName As String) As Long

Const SWP_HIDEWINDOW = &H80

Const SWP_SHOWWINDOW = &H40

Private Sub Command1_Click()

Dim Thwnd as Long

Thwnd = FindWindow("Shell_traywnd", "")

Call SetWindowPos(Thwnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW)

End Sub

Private Sub Command2_Click()

Dim Thwnd as Long

Thwnd = FindWindow("Shell_traywnd", "")

Call SetWindowPos(Thwnd, 0, 0, 0, 0, 0, SWP_SHOWWINDOW)

End Sub