Make form transparent while dragging

Hi guys,

Here is a VB snippet that, when moved, the window becomes transparent.

Private Const WM_NCLBUTTONDOWN As Long = &HA1
Private Const WM_NCLBUTTONUP As Long = &HA0
Private Const WM_MOVING As Long = &H216
Private Const WM_SIZE As Long = &H5
Protected Overrides Sub DefWndProc(ByRef m As System.Windows.Forms.Message)
Static LButtonDown As Boolean
(checks left click)
If CLng(m.Msg) = WM_NCLBUTTONDOWN Then
'(as long as left button is down LButtonDown returns true)
LButtonDown = True
ElseIf CLng(m.Msg) = WM_NCLBUTTONUP Then
' (As long as left button is up, LButtonDown returns false)
LButtonDown = False
End If
If LButtonDown Then
If CLng(m.Msg) = WM_MOVING Then
'Changes form opacity to 70% if the form is being dragged
' You can change the 0.7 to anything 0.1 = 10% 0.2 = 20 % and so on
If Me.Opacity <> 0.9 Then Me.Opacity = 0.5
ElseIf CLng(m.Msg) = WM_SIZE Then
'Set the forms opacity to 60% if user is resizing the window
If Me.Opacity <> 0.6 Then Me.Opacity = 0.6
End If
ElseIf Not LButtonDown Then
If Me.Opacity <> 1.0 Then Me.Opacity = 1.0
End If
MyBase.DefWndProc(m)
End Sub



Gunnez