Semi Transparent Form using VB6

Question

Is it possible to create a form that is semi transparent, It should be visible over any open windows, not hidden behind ? Please guide!

Answer 1

'function to make transparent'

Private Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long,ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long

Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long

Private Const G = (-20)
Private Const LWA_COLORKEY = &H1        'to trans'
Private Const LWA_ALPHA = &H2           'to semi trans'
Private Const WS_EX_LAYERED = &H80000

Private Sub Form_Activate()
    Me.BackColor = vbBlue
    Trans 1
End Sub

Private Sub Trans(Level As Integer)
    Dim Msg As Long
    Msg = GetWindowLong(Me.hwnd, G)
    Msg = Msg Or WS_EX_LAYERED
    SetWindowLong Me.hwnd, G, Msg
    SetLayeredWindowAttributes Me.hwnd, vbBlue, Level, LWA_COLORKEY
End Sub