0x0F SID_CHATEVENT
| Protocol | BNCS |
|---|
| Directions | Server → Client |
|---|
| Used by |           
|
|---|
Everything that happens in chat: joins, leaves, messages, whispers and server notices.
Server → Client
| Type | Field | Notes | Confidence |
|---|
UINT32 |
Event ID |
What happened. See the table below. |
✅ Verified |
UINT32 |
User flags |
For user events, the user's flags. For EID_CHANNEL, the channel's flags. |
✅ Verified |
UINT32 |
Ping |
The user's latency in milliseconds. |
✅ Verified |
UINT32 |
IP address |
No longer used. Always 0. |
⚠️ Single source |
UINT32 |
Account number |
No longer used. Always 0. |
⚠️ Single source |
UINT32 |
Registration authority |
No longer used. Always 0. |
⚠️ Single source |
STRING |
Username |
|
✅ Verified |
STRING |
Text |
The message, the channel name, or the user's statstring, depending on the event. |
✅ Verified |
Event IDs
| Value | Meaning | Confidence |
|---|
0x01 | EID_SHOWUSER: a user already in the channel when you joined. | ✅ Verified |
0x02 | EID_JOIN: a user joined. | ✅ Verified |
0x03 | EID_LEAVE: a user left. | ✅ Verified |
0x04 | EID_WHISPER: a whisper to you. | ✅ Verified |
0x05 | EID_TALK: a message in the channel. | ✅ Verified |
0x06 | EID_BROADCAST: a server-wide announcement. | ✅ Verified |
0x07 | EID_CHANNEL: you are now in this channel. | ✅ Verified |
0x09 | EID_USERFLAGS: a user's flags changed. | ✅ Verified |
0x0A | EID_WHISPERSENT: your whisper was delivered. | ✅ Verified |
0x0D | EID_CHANNELFULL: the channel is full. | ✅ Verified |
0x0E | EID_CHANNELDOESNOTEXIST: no such channel. | ✅ Verified |
0x0F | EID_CHANNELRESTRICTED: you may not join that channel. | ✅ Verified |
0x12 | EID_INFO: an information message from the server. | ✅ Verified |
0x13 | EID_ERROR: an error message from the server. | ✅ Verified |
0x15 | EID_IGNORE: you are now ignoring (squelching) a user. | ⚠️ Single source |
0x16 | EID_ACCEPT: you stopped ignoring a user. | ⚠️ Single source |
0x17 | EID_EMOTE: an emote (/me). | ✅ Verified |
0x08, 0x0B, 0x0C, 0x10, 0x11, 0x14 | Not known. Don't assume these are unused. | 🛑 Unknown |
User flags
| Value | Meaning | Confidence |
|---|
0x01 | Blizzard representative | ⚠️ Single source |
0x02 | Channel operator | ✅ Verified |
0x04 | Channel speaker | ⚠️ Single source |
0x08 | Battle.net administrator | ⚠️ Single source |
0x10 | No UDP support | ✅ Verified |
0x20 | Squelched (ignored by you) | ⚠️ Single source |
0x40 | Special guest | ⚠️ Single source |
Relaying chat text. A server must strip control characters from text before relaying it. A carriage return or line feed inside chat text makes real clients misbehave, and real Battle.net disconnected and briefly banned the sender.
Appears in
Sources and credits
This page is written in our own words. BNETDocs is credited for its research; none of its text is copied. See Credits.
Last edited September 16, 2026 by John Leighow.
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