Re: [Programmer-VB] From Transparan

Thu, 02 Feb 2006 20:06:16 -0800

ehm... transparan form :)
bisa sih, tapi ini hanya bisa jalan di win2K/XP
 
best regards
[wwn]
 
'---------------------------------------
 
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 UpdateLayeredWindow Lib "user32" (ByVal hwnd As Long, ByVal hdcDst As Long, pptDst As Any, psize As Any, ByVal hdcSrc As Long, pptSrc As Any, crKey As Long, ByVal pblend As Long, 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 GWL_EXSTYLE = (-20)
Private Const LWA_COLORKEY = &H1
Private Const LWA_ALPHA = &H2
Private Const ULW_COLORKEY = &H1
Private Const ULW_ALPHA = &H2
Private Const ULW_OPAQUE = &H4
Private Const WS_EX_LAYERED = &H80000

Public Function MakeTransparent(ByVal hwnd As Long, ByVal Perc As Integer) As Long
   Dim Msg As Long
   On Error Resume Next
   
   Perc = ((100 - Perc) / 100) * 255
   If Perc < 0 Or Perc > 255 Then
     MakeTransparent = 1
   Else
     Msg = GetWindowLong(hwnd, GWL_EXSTYLE)
     Msg = Msg Or WS_EX_LAYERED
     SetWindowLong hwnd, GWL_EXSTYLE, Msg
     SetLayeredWindowAttributes hwnd, 0, Perc, LWA_ALPHA
     MakeTransparent = 0
   End If
   If Err Then
     MakeTransparent = 2
   End If
End Function

Public Function IsTransparent(ByVal hwnd As Long) As Boolean
   On Error Resume Next
   Dim Msg As Long
   Msg = GetWindowLong(hwnd, GWL_EXSTYLE)
   If (Msg And WS_EX_LAYERED) = WS_EX_LAYERED Then
     IsTransparent = True
   Else
     IsTransparent = False
   End If
   If Err Then
     IsTransparent = False
   End If
End Function



On 2/3/06, skdmdn <[EMAIL PROTECTED]> wrote:
Teman2 VB,
 
Ada yg punya script buat form transparan gak?
Please dibagi ya....
Thank's B4


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