マップの全体表示に対するカスタム範囲を設定

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