ChatCallbackType

Enumerates the callback hook points available in the legacy Luau chat system. Pass a value to Chat:RegisterChatCallback() to bind a function to the corresponding event, and to Chat:InvokeChatCallback() to invoke the registered function for that event. Each value targets either the client or the server; attempting to register a server-only callback on the client (or vice versa) raises an error.

Items

Name	Value	Description
OnCreatingChatWindow	1	Client-only callback invoked before the chat window is constructed, allowing custom settings to be supplied.
OnClientSendingMessage	2	Client-only callback reserved for when the client sends a message; not currently invoked.
OnClientFormattingMessage	3	Client-only callback invoked before a message is displayed, allowing its display data to be modified.
OnServerReceivingMessage	17	Server-only callback invoked when the server receives a message from a speaker, allowing the message to be modified or suppressed.

OnCreatingChatWindow

Client-only callback invoked before the chat window is constructed, allowing custom settings to be supplied.

Field	Value
value	1

OnClientSendingMessage

Client-only callback reserved for when the client sends a message; not currently invoked.

Field	Value
value	2

OnClientFormattingMessage

Client-only callback invoked before a message is displayed, allowing its display data to be modified.

Field	Value
value	3

OnServerReceivingMessage

Server-only callback invoked when the server receives a message from a speaker, allowing the message to be modified or suppressed.

Field	Value
value	17