Request Method (IMapVirtualSource)

Called from C1MapVirtualLayer when new items are needed for a map region.

Syntax

Visual Basic
C#

'Declaration
 
Sub Request( _
   ByVal minZoom As System.Double, _
   ByVal maxZoom As System.Double, _
   ByVal lowerLeft As System.Windows.Point, _
   ByVal upperRight As System.Windows.Point, _
   ByVal callback As System.Action(Of ICollection) _
)

void Request( 
   System.double minZoom,
   System.double maxZoom,
   System.Windows.Point lowerLeft,
   System.Windows.Point upperRight,
   System.Action<ICollection> callback
)

Parameters

minZoom: The minimum zoom of the region.
maxZoom: The maximum zoom of the region.
lowerLeft: The lower left coordinate of the region, in geographic coordinates.
upperRight: The upper right coordinate of the region, in geographic coordinates.
callback: A delegate to call with the elements inside the specified region.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IMapVirtualSource Interface
IMapVirtualSource Members