[AccessD] still troubles with IsLoaded

Here is the IsLoaded function that used to be in utility.mda that was an 
automatic addin for Access 97
This is a copy of routine  from northwind.mbd

Function IsLoaded(ByVal strFormName As String) As Boolean
 ' Returns True if the specified form is open in Form view or Datasheet 
view.
   
    Const conObjStateClosed = 0
    Const conDesignView = 0
   
    If SysCmd(acSysCmdGetObjectState, acForm, strFormName) <> 
conObjStateClosed Then
        If Forms(strFormName).CurrentView <> conDesignView Then
            IsLoaded = True
        End If
    End If
   
End Function


pedro at plex.nl wrote:

>Hello Group,
>
>i keeping getting an error on the IsLoaded. "Sub or function not defined"
>This was working in A97, but in 2003 it is giving me troubles.
>
>i tried to Dim al objects, with no result.
>
>I can't figure out why
>
>Please help
>
>Pedro Janssen
>
>
>
>Private Sub pl_Form_Current()
>On Error GoTo Err_Form_Current
>
>    Dim strDocNaam As String
>    Dim Koppelcriterium As String
>        
>        strDocNaam = "Produktenlijst"
>        Koppelcriterium = "[Levcode] = Forms![Lev]![Levcode]"
>   
>    If IsNull(Me![LEVNAAM]) Then
>        Exit Sub
>    ElseIf IsLoaded("Produktenlijst") Then
>        DoCmd.OpenForm strDocNaam, , , Koppelcriterium
>    End If
>
>Exit_Form_Current:
>    Exit Sub
>    
>Err_Form_Current:
>    MsgBox Err.Description
>    Resume Exit_Form_Current
>
>End Sub
>  
>

-- 
Marty Connelly
Victoria, B.C.
Canada