SPExternalApplicationRequestProperties Class
SharePoint 2010
Represents a request from an external application, such as a Silverlight application, for access to SharePoint Foundation data.
Namespace:
Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: No
A SPExternalApplicationRequestProperties object is passed to an External Application Provider (EAP) which will use it to generate and return an SPExternalApplicationRequestResult object. The latter provides the final RequestToken.