Retrieve response header information. If the response length is not known set responseLength to -1 and ReadResponse() will be called until it returns false. If the response length is known set responseLength to a positive value and ReadResponse() will be called until it returns false or the specified number of bytes have been read. If an error occured while setting up the request you can set ErrorCode to indicate the error condition.

void GetResponseHeaders(
	IResponse response,
	out long responseLength,
	out string redirectUrl
)

void GetResponseHeaders(
	IResponse^ response, 
	[OutAttribute] long long% responseLength, 
	[OutAttribute] String^% redirectUrl
)