Tuesday, May 18, 2010

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

1 comments:

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