Registers to receive addon messages with a given prefix. In order for an addon to receive messages sent using SendAddOnMessage they must first register to receive messages with a given prefix. There is a soft cap of 64 prefixes on the server side, and a hard cap of 512 prefixes on the client side. Exceeding the soft cap is not recommended, but addon messages can still be received.
See also Addon-related functions.
prefix- A string of up to 16 characters used to identify a stream of messages. The prefix may contain any character except the null character (
'\0'), which prematurely terminates the string, and the number of characters may not exceed 16. The string must not be empty. (string) (
success- Whether or not the prefix registration was successful. There is a limit of 512 prefixes per client, so registration could potentially fail. (