Return Codes

Returns an enumerated type ProxyCheckAsyncResponseReturnValue. Values may be:

CheckAsyncAvailable-The specified request's response can be successfully obtained (using ProxyGetAsyncResponse).
CheckAsyncPending-The specified request's response is not immediately available.
CheckAsyncInvalidAsyncRequestID-The request ID cannot be found. This may be because the ID is not valid, or because the response was already completed (that is, retrieved or ignored).
CheckAsyncProcessingError-The proxy runtime was unable to process the check async request, but the error does not fall into one of the above categories.