Window on top

VB Code:

Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long,  ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Declare Function ClipCursor Lib "user32" (lpRect As Any) As Long
Private Declare Function GetWindowRect Lib "user32.dll" (ByVal hwnd As Long, lpRect As RECT) As Long
Private Declare Function GetDesktopWindow Lib "user32.dll" () As Long 
 
Type RECT 
    left As Long 
    top As Long 
    right As Long 
    bottom As Long 
End Type 
 
Private Const SWP_NOMOVE = 2
Private Const SWP_NOSIZE = 1
Private Const FLAGS = SWP_NOMOVE Or SWP_NOSIZE
Private Const HWND_TOPMOST = -1
Private Const HWND_NOTOPMOST = -2
 
Private Function SetTopMostWindow(hwnd As Long, Topmost As Boolean) As Long
  On Error Goto ErrRtn
   If (Topmost) Then
      SetTopMostWindow = SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, FLAGS)
   Else
      SetTopMostWindow = SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, FLAGS)
      SetTopMostWindow = False
   End If
   Exit Function
ErrRtn:
MsgBox "Error in SetTopMostWindow " & Err & " " & Error, vbExclamation + vbOKCancel
End Function
 
Private Sub Form_Load()
Dim r As RECT 
Dim retval As Long 
'To make a form always on top
SetTopMostWindow Me.hwnd, TRUE
'(SetTopMostWindow Me.hwnd, FALSE would prevent window from being TopMost)
'To prevent any action on any other window, confine the mouse to the topmost form, using this
retval = GetWindowRect(Form1.hwnd, r)
retval = ClipCursor(r) 
End Sub