Public Function BeginProcessRequest( _
   ByVal context As HttpContext, _
   ByVal cb As AsyncCallback, _
   ByVal extraData As Object _
) As IAsyncResult

Visual Basic (Usage)	Copy Code
Dim instance As ImageHandler Dim context As HttpContext Dim cb As AsyncCallback Dim extraData As Object Dim value As IAsyncResult   value = instance.BeginProcessRequest(context, cb, extraData)

public IAsyncResult BeginProcessRequest( 
   HttpContext context,
   AsyncCallback cb,
   object extraData
)

Parameters

context

An HttpContext object that provides references to intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests. System.Web.HttpContext

cb

The AsyncCallback to call when the asynchronous method call is complete. If cb is a null reference (Nothing in Visual Basic), the delegate is not called. System.AsyncCallback

extraData

Any extra data needed to process the request.

Return Value

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference