'Globals
'****************************************************************
'Windows API/Global Declarations for :Make Form Transparent.
'****************************************************************


Declare Function GetWindowRect Lib "user32" (ByVal hWnd As Long, lpRECT As RECT) As Long
Declare Function GetClientRect Lib "user32" (ByVal hWnd As Long, lpRECT As RECT) As Long
Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Declare Function CreateRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Declare Function ScreenToClient Lib "user32" (ByVal hWnd As Long, lpPoint As POINTAPI) As Long
Declare Function SetWindowRgn Lib "user32" (ByVal hWnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long

       Public Const RGN_AND = 1
       Public Const RGN_COPY = 5
       Public Const RGN_DIFF = 4
       Public Const RGN_OR = 2
       Public Const RGN_XOR = 3

Type POINTAPI
       x As Long
       Y As Long
End Type


Type RECT
       Left As Long
       Top As Long
       Right As Long
       Bottom As Long
End Type

'Code
'****************************************************************
' Name: Make Form Transparent.
'     ' Description:Makes a Form Trans Parent
' By: Kalani COM
'
' Inputs:None
' Returns:None
' Assumes:None
' Side Effects:No Controls are Visible on the Form
'
'Code provided by Planet Source Code(tm) 'as is', without
'     warranties as to performance, fitness, merchantability,
'     and any other warranty (whether expressed or implied).
'****************************************************************


Public Sub MakeTransparent(frm As Form)
       '     'This code was takin from a AOL Visual Basic
       '     'Message Board. It was submited by: SOOPRcow
       Dim rctClient As RECT, rctFrame As RECT
       Dim hClient As Long, hFrame As Long
       '     '// Grab client area and frame area
       GetWindowRect frm.hWnd, rctFrame
       GetClientRect frm.hWnd, rctClient
       '     '// Convert client coordinates to screen coordinates
       Dim lpTL As POINTAPI, lpBR As POINTAPI
       lpTL.x = rctFrame.Left
       lpTL.Y = rctFrame.Top
       lpBR.x = rctFrame.Right
       lpBR.Y = rctFrame.Bottom
       ScreenToClient frm.hWnd, lpTL
       ScreenToClient frm.hWnd, lpBR
       rctFrame.Left = lpTL.x
       rctFrame.Top = lpTL.Y
       rctFrame.Right = lpBR.x
       rctFrame.Bottom = lpBR.Y
       rctClient.Left = Abs(rctFrame.Left)
       rctClient.Top = Abs(rctFrame.Top)
       rctClient.Right = rctClient.Right + Abs(rctFrame.Left)
       rctClient.Bottom = rctClient.Bottom + Abs(rctFrame.Top)
       rctFrame.Right = rctFrame.Right + Abs(rctFrame.Left)
       rctFrame.Bottom = rctFrame.Bottom + Abs(rctFrame.Top)
       rctFrame.Top = 0
       rctFrame.Left = 0
       '     '// Convert RECT structures to region handles
       hClient = CreateRectRgn(rctClient.Left, rctClient.Top, rctClient.Right, rctClient.Bottom)
       hFrame = CreateRectRgn(rctFrame.Left, rctFrame.Top, rctFrame.Right, rctFrame.Bottom)
       '     '// Create the new "Transparent" region
       CombineRgn hFrame, hClient, hFrame, RGN_XOR
       '     '// Now lock the window's area to this created region
       SetWindowRgn frm.hWnd, hFrame, True
End Sub