Request

Index Word	Description
0	Header code [0x000C0102]
1	HTTP context handle
2	Buffer size
3-4	u64 nanoseconds delay, this specifies the maximum length of time to wait for the server to reply/send data before returning a time-out error?
5	(OutSize<<4) \| 12
6	Output data pointer

Response

Index Word	Description
0	Header code
1	Result code

This writes the downloaded content(after the HTTP headers) to the output buffer.