Internet Direct (Indy) Version 9.0.2 Beta
TIdHTTPRequest.UseProxy
Indicates the connectionm type and headers for the HTTP request.

property UseProxy: TIdHTTPConnectionType;
Description
UseProxy is a read-only TIdHTTPConnectionType property that indicates the connection type return when TIdHTTP establishes a connection to the host for the request URL. UseProxy will indicate if the HTTP requestshould contain values for 'Keep-Alive' or 'No-Cache' headers in the request.