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Thread: transparent forms

  1. #1

    Thread Starter
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    Join Date
    May 2000
    Posts
    1

    Question

    using vb6
    i can make the form transparent and
    controls visible at runtime, but im not using controls
    on this form.
    im adding only a picture(bmp) to it.
    is there a way to make the picture (bmp) visible?

  2. #2
    transcendental analytic kedaman's Avatar
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    Just create a rectrgn with the pictures coordinates and combine it to the form rgn
    Use
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  3. #3
    Guest

    I'm not sure if you need this or not, but here is how to make the Form Transparent.

    Code for a module

    Code:
    Public Const GWL_EXSTYLE = (-20)
    Public Const WS_EX_TRANSPARENT = &H20&
    Public Const SWP_FRAMECHANGED = &H20
    Public Const SWP_NOMOVE = &H2
    Public Const SWP_NOSIZE = &H1
    Public Const SWP_SHOWME = SWP_FRAMECHANGED Or _
    SWP_NOMOVE Or SWP_NOSIZE
    Public Const HWND_NOTOPMOST = -2  
    
    Declare Function SetWindowLong Lib "user32" _
    Alias "SetWindowLongA" _
    (ByVal hwnd As Long, ByVal nIndex As Long, _
    ByVal dwNewLong As Long) As Long
    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
    Add a commandbutton with following code to Form1

    Code:
    Private Sub Command1_Click()
    SetWindowLong Me.hwnd, GWL_EXSTYLE, _
    WS_EX_TRANSPARENT
    SetWindowPos Me.hwnd, HWND_NOTOPMOST, _
    0&, 0&, 0&, 0&, SWP_SHOWME
    End Sub
    The ShowInTaskbar property should be set to False and the BorderStyle to 0-None.

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