gistfile1.vb

Option Explicit
'API to move windowless form
Private Const HTCAPTION           As Long = 2
Private Const WM_NCLBUTTONDOWN    As Long = &HA1
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, _
                                                                        ByVal wMsg As Long, _
                                                                        ByVal wParam As Long, _
                                                                        lParam As Any) As Long
Private Declare Function ReleaseCapture Lib "user32" () As Long

Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
'Moving the form using mouse button from any location on the form held with mouse
    If Button = 1 Then
        ReleaseCapture
        SendMessage Me.hwnd, WM_NCLBUTTONDOWN, HTCAPTION, ByVal 0&
    End If
End Sub