Patch 4.1: Addon messages will be filtered

[Cairenn]

Addon authors that use chat messages should check that their addons still work in 4.1

Authors will need to add calls to RegisterAddonMessagePrefix() in order to receive addon messages of a particular prefix, presumably during PLAYER_ENTERING_WORLD for the majority of addons. Note that this system errs on the side of sending too much; it is possible for addon messages to make it to the CHAT_MSG_ADDON handlers when no addon has registered it.

• RegisterAddonMessagePrefix( <string> )

Returns a boolean if successful (could fail if it hits the client side limit of 512 prefixes).

• IsAddonMessagePrefixRegistered( <string> )

Returns a Boolean if the prefix has been registered.

• <table> GetRegisteredAddonMessagePrefixes( <table> )

Returns a table (or you can pass in a table), that will be filled in with all prefixes that were registered.

Prefixes are limited to 16 characters now, and they no longer take up a portion of the 256 character chat message limit. The server has a 64 prefix limit. If you exceed this limit your client will not filter any messages.

Also: SendAddonMessage() is now allowed for the OFFICER channel.

Original post is here.

[sigg]

Good news!

[Xinhuan]

Wait, so there's no command to unregister an addon prefix?

Also, the client has a 512 prefix limit but the server only recognizes the first 64?

[Nibelheim]

Originally Posted by Xinhuan Wait, so there's no command to unregister an addon prefix?

I'd say they're trying to limit the amount of registration/unregistration requests addons make to the server. Though it would be nice to be able to only register prefixes for a duration.

[sigg]

I really don't care.

In RDX, we use only one prefix.

Our framework implement a "sub prefix" in the message, to know the callback function.

[orionshock]

That's Kinda cool they did this, considering we've been asking for it from the start

[Xinhuan]

They replied by queries! WOOO!

[MysticalOS]

Originally Posted by Xinhuan They replied by queries! WOOO!

i saw, i also like how they very sternly said circumventing the limit on purpose to restore old methods would provoke a response