'Declaration
 
Protected MustOverride Sub RenderImage( _
   ByVal context As System.Web.HttpContext, _
   ByVal stateTransport As NStateObject, _
   ByVal viewport As System.Nullable(Of NRectangle) _
) 

'Usage
 
Dim instance As NImageResponseHttpHandler
Dim context As System.Web.HttpContext
Dim stateTransport As NStateObject
Dim viewport As System.Nullable(Of NRectangle)
 
instance.RenderImage(context, stateTransport, viewport)

protected abstract void RenderImage( 
   System.Web.HttpContext context,
   NStateObject stateTransport,
   System.Nullable<NRectangle> viewport
)

Parameters

context

HTTP context, associated with the request

stateTransport

The session state, associated with the web control

viewport

The viewport to render. If this parameter is set to null, the whole image is rendered.

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

NImageResponseHttpHandler Class
NImageResponseHttpHandler Members