Attribute VB_Name = "Main" ' ' Constants used here and there ' Public Const GRAPH As Integer = &H1 Public Const NODE As Integer = &H2 Public Const EDGE As Integer = &H4 Public Const SUBGRAPH As Integer = &H8 Public Const CLUSTER As Integer = &H10 Public Const ANY_ELEMENT As Integer = GRAPH Or NODE Or EDGE Or SUBGRAPH Or CLUSTER Public Const DOT As Integer = &H1 Public Const NEATO As Integer = &H2 Public Const TWOPI As Integer = &H4 Public Const ALL_ENGINES As Integer = DOT Or NEATO Or TWOPI