In the code below I am trying to "get" a pdf so that I can open it and print it from a .Net DLL.  My current specific question is in the line .AddVariable("X",retVal(0)), where retVal(0) is the name of a file, what is the first parameter (that I have set to "X")?

More generally, how can I find documentation to this level?  I have spent most of this afternoon trying to go through the EPDM API help.  While I can find, for example, IEdmSearch7, I cannot find anything that documents the properties and methods of that class.  Because this one implements IEdmSearch6, and that implements IEdmSearch5, I also looked at the documentation for those.  Again, no luck.

So -- obviously hoping you can help with the first question so that I can move along with my project, but also hoping to figure out the documentation so that I don't have to keep asking questions and bugging people!

Thanks.

                        Dim search As IEdmSearch7 = vault.CreateSearch
                        Dim item As EPDMItemA = Nothing

                        'search = vault.CreateUtility(EdmUtility.EdmUtil_Search)
                        With search
                            .FindFiles = True
                            .FindFolders = False
                            .Recursive = True
                            .SetToken(EdmSearchToken.Edmstok_FindItems, True)
                            .StartFolderID = vault.ItemRootFolderID
                            .AddVariable("X", retVal(0))
                        End With

                        Dim result As IEdmSearchResult5 = search.GetFirstResult
                        If Not result Is Nothing Then
                            If result.IsKindOf(EdmObjectType.EdmObject_Item) Then
                                Dim file As IEdmFile8 = result
                                Dim edmItem As IEdmItem = file

                                item = New EPDMItemA(edmItem)
                            End If
                        End If