Newb Lau question

[jamesst]

Hi all.

I am new to making addons, but not new to coding. LUA is easy enough, however LAU in WOW isnt as straight foreward.

What i am struggling with is how to access widget methods.

Assume i have a form called myform. And a label called Label1.

I have afunction in LAU as follows

Function writetolabel(self)

self.Label1:SetText("yataa")

end

thing is, it doesnt work, all i get is error messages. I have tried :
Label1:SetText("yataa")

local lable;
label = getgobel("Label1")
label:SetText("yataa")

I have used $parent correclt aswell, and this makes no differnce.

Nothing works. its is obvious that i am clueless as to how to access the XML Widgets from inside LUA scripts.

As there are no real tutorials on this. All i can say is. PLEASE, some one put me out of my missery.
HELP !!!

[Gemini_II]

I can't code worth beans, but I know where to look:

www.lua.org
www.lua-users.org
www.wowwiki.com <- this also has a list of all current API functions. If you know LUA, I would start here

If you plan on using any Ace libs then you can usually find lots of help over at www.wowace.com also.

[jamesst]

Been to all these places, and none have this specific info.

wowwiki says <elementname>:<function> which doesnt work.
Lau org is good for learning LAU, but interacting with the XML elements is outside its scope and i custom to wow. i have trolled the net and even google cant finda tutorial that actually explains this. A few demos, whcih, incidentally, dont work either lol

[jamesst]

Ok, this is from another mod on this site

function Simple_Coords_OnUpdate(elapsed)
Simple_Coords_SecondsSinceUpdate = Simple_Coords_SecondsSinceUpdate + elapsed;
if (Simple_Coords_SecondsSinceUpdate > HEARTBEAT_INTERVAL) then
local x, y = GetPlayerMapPosition("player");

if x == 0 then
Simple_CoordsText:SetText("---");
else
Simple_CoordsText:SetText(format( "%.1f, %.1f", x * 100, y * 100));
Astrolabe:UpdateMinimapIconPositions();
end
Simple_Coords_SecondsSinceUpdate=0;
end -- if
end

This function is passed as the onupdate event handler in the XML file for the frame.
Note Simple_CoordsText:SetText("---");

This is more or less what i have done. I have got the event handler registered. I have the label1:SetText("meep"); in it.

All i get is an error message lol. I am lost lol

[Jayhawk]

First, it's lua not lau.

I'm not quit sure what you are doing (or want to do), but when quoting code snippets, it helps to use the code tags to keep spacing. They ar under the little # icon when you write/edit a post.

function Simple_Coords_OnUpdate(elapsed)
  Simple_Coords_SecondsSinceUpdate = Simple_Coords_SecondsSinceUpdate + elapsed;
  if (Simple_Coords_SecondsSinceUpdate > HEARTBEAT_INTERVAL) then
    local x, y = GetPlayerMapPosition("player");

    if x == 0 then
      Simple_CoordsText:SetText("---");
    else
      Simple_CoordsText:SetText(format( "%.1f, %.1f", x * 100, y * 100));
      Astrolabe:UpdateMinimapIconPositions();
    end
    Simple_Coords_SecondsSinceUpdate=0;
  end -- if
end

The code you quote above should work. Being bold and judging by your spelling here, I'd say: double-check everything, spelling, case (upper/lower) etc.
Of course, I can be wrong and you do code more neat that you write forum posts.

[Seerah]

Most people have learned to code by dissecting or fiddling with other people's addons. Look at the lua. Look at the xml. Go to the WoW site and download the Custom UI Toolkit - it extracts the game data for you and has a couple of tutorials in it.