Open the response stream. To handle the request immediately set
|handle_request| to true (1) and return true (1). To decide at a later
time set |handle_request| to false (0), return true (1), and execute
|callback| to continue or cancel the request. To cancel the request
immediately set |handle_request| to true (1) and return false (0). This
function will be called in sequence but not from a dedicated thread. For
backwards compatibility set |handle_request| to false (0) and return false
(0) and the ProcessRequest function will be called.
Open the response stream. To handle the request immediately set |handle_request| to true (1) and return true (1). To decide at a later time set |handle_request| to false (0), return true (1), and execute |callback| to continue or cancel the request. To cancel the request immediately set |handle_request| to true (1) and return false (0). This function will be called in sequence but not from a dedicated thread. For backwards compatibility set |handle_request| to false (0) and return false (0) and the ProcessRequest function will be called.