マルチ レイヤー シンボルの作成

Dim pMxDocument As IMxDocument
Set pMxDocument = ThisDocument

Dim pActiveView As IActiveView
Set pActiveView = pMxDocument.ActiveView

Dim pNewEnvelope As IEnvelope
Set pNewEnvelope = New Envelope

Dim pMap As IMap
Set pMap = pMxDocument.FocusMap
pMap.AreaOfInterest = pNewEnvelope  '[全体表示の表示範囲] の範囲をカスタマイズ
pMap.AreaOfInterest = Nothing       '全てのレイヤの表示範囲(デフォルト)に設定

Dim pEnvelope As IEnvelope
Set pEnvelope = pActiveView.FullExtent

Dim pGeometry As IGeometry2
Set pGeometry = pEnvelope

Debug.Print pEnvelope.XMax  '

Dim pProjectedCoordinateSystem As IProjectedCoordinateSystem
Set pProjectedCoordinateSystem = pGeometry.SpatialReference

pGeometry.Project pProjectedCoordinateSystem.GeographicCoordinateSystem '同じ測での投影変換になるのでProjectExである必要はない

Debug.Print pEnvelope.XMax  '[度] チェックで表示