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Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long
Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hWnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long
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
Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As Any, ByVal lpWindowName As Any) As Long

Public Type POINTAPI
x As Long
y As Long
End Type

Public Type SIZE
cx As Long
cy As Long
End Type

Public Type BLENDFUNCTION
BlendOp As Byte
BlendFlags As Byte
SourceConstantAlpha As Byte
AlphaFormat As Byte
End Type
Public Const WS_EX_LAYERED = &H80000
Public Const GWL_STYLE = (-16)
Public Const GWL_EXSTYLE = (-20)
Public Const AC_SRC_OVER = &H0
Public Const AC_SRC_ALPHA = &H1
Public Const AC_SRC_NO_PREMULT_ALPHA = &H1
Public Const AC_SRC_NO_ALPHA = &H2
Public Const AC_DST_NO_PREMULT_ALPHA = &H10
Public Const AC_DST_NO_ALPHA = &H20
Public Const LWA_COLORKEY = &H1
Public Const LWA_ALPHA = &H2
Public Const ULW_COLORKEY = &H1
Public Const ULW_ALPHA = &H2
Public Const ULW_OPAQUE = &H4
Public lret As Long

Function CheckLayered(ByVal hWnd As Long) As Boolean
lret = GetWindowLong(hWnd, GWL_EXSTYLE)
If (lret And WS_EX_LAYERED) = WS_EX_LAYERED Then
CheckLayered = True
Else
CheckLayered = False
End If
End Function

Sub SetLayered(ByVal hWnd As Long, SetAs As Boolean, bAlpha As Byte)
lret = GetWindowLong(hWnd, GWL_EXSTYLE)
If SetAs = True Then
lret = lret Or WS_EX_LAYERED
Else
lret = lret And Not WS_EX_LAYERED
End If
SetWindowLong hWnd, GWL_EXSTYLE, lret
SetLayeredWindowAttributes hWnd, 0, bAlpha, LWA_ALPHA
End Sub