Public Shared Function GetMatchingLevelIndex( _
   ByVal tileInfo As TileCacheInfo, _
   ByVal extentToDraw As Envelope, _
   ByVal imageDescriptor As ImageDescriptor, _
   ByRef exactMatch As Boolean, _
   ByRef matchingExtent As Envelope _
) As Integer

Dim tileInfo As TileCacheInfo
Dim extentToDraw As Envelope
Dim imageDescriptor As ImageDescriptor
Dim exactMatch As Boolean
Dim matchingExtent As Envelope
Dim value As Integer
 
value = TileDrawExtent.GetMatchingLevelIndex(tileInfo, extentToDraw, imageDescriptor, exactMatch, matchingExtent)

public static int GetMatchingLevelIndex( 
   TileCacheInfo tileInfo,
   Envelope extentToDraw,
   ImageDescriptor imageDescriptor,
   out bool exactMatch,
   out Envelope matchingExtent
)