This snac used by client and server for mini typing notification (MTN). Basically,
when you begin typing something you send a "typing begun" message, then a few
seconds later you send a "text typed" message, then after you actually
send the message, you send a "no more text has been typed" message. You also send
the "typing finished" message if you delete all the stuff you've typed.
Remote clients know that your client supports MTN because the server appends an
empty type 0x000b TLV to all outgoing IMs. You tell the server you want this TLV
appended when you send the SNAC(04,02).
Just set message flags bit4=1. Send and receive SNACs has the same type=0x14.
Here is the known notification types list:
0x0000 - typing finished sign
0x0001 - text typed sign
0x0002 - typing begun sign
| 00 04 |
|
word |
|
SNAC family |
| 00 14 |
|
word |
|
SNAC subtype |
| 00 00 |
|
word |
|
SNAC flags |
| xx xx xx xx |
|
dword |
|
SNAC request-id |
|
00 00 00 00
00 00 00 00 |
|
qword |
|
notification-id cookie |
| xx xx |
|
word |
|
notification channel |
| xx |
|
byte |
|
screenname string length |
| xx .. |
|
string |
|
screenname string |
| xx xx |
|
word |
|
notification type (see above) |
|
|
|