When do Guild API Functions become Available?

[ialsoagree]

I need to know when guild functions become available, and how to delay some initialize functions until they're available (IE. is there an event I can register for?).

Example:

function mymod_OnLoad()
	if (GetGuildInfo("player")) == "some clan name" then
		DEFAULT_CHAT_FRAME:AddMessage("You're in the some clan name guild");
	else
		DEFAULT_CHAT_FRAME:AddMessage("You're in guild " .. (GetGuildInfo("player")));
	end
	DEFAULT_CHAT_FRAME:AddMessage("Done initializing");
end

When my mod first loads, this function outputs NOTHING. It doesn't return a true or false value, it merely ends the script immediately with no warning or error.

However, after a ReloadUI() this function works as expected, and returns an appropriate message.

When do functions like these become available for use, and how can I run an initialization function when they become available?