1. hi all,

    working on my own addon and ran into am dead end.

    so basically what i want. iv'e got my frame with texture. this texture should change if the target is elite, rare, normal, boss etc. but change should be done with SetTexCoord.

    so this is what i got with some help, but it does nothing at the moment.

     --- <| BACKGROUND |> -------------------------
     ----------------------------------------------
     Back = CreateFrame('Frame', nil, self)
         Back:SetPoint("TOPLEFT", self)
         Back:SetPoint("BOTTOMRIGHT", self)
         Back:SetFrameStrata("BACKGROUND")
    
         local MyTargetBGTex = Back:CreateTexture()
               MyTargetBGTex:SetParent(Back)
               MyTargetBGTex:SetAllPoints(Back)
               MyTargetBGTex:SetTexture("Interface\\Addons\\zAoCTextures\\media\\unitframe_bgs.tga")
               MyTargetBGTex:SetTexCoord(0,0.5,0,0.5) -- (left,right,top,bottom)
    
     local function MyTargetBGTex_Update()
         local class = UnitClassification("target")
         if ( class == "worldboss" ) then 
               MyTargetBGTex:SetTexCoord(0.5,1,0.5,1)
         elseif ( class == "rareelite" or class == "elite" ) then
               MyTargetBGTex:SetTexCoord(0,0.5,0.5,1)
         elseif ( class == "rare" ) then
               MyTargetBGTex:SetTexCoord(0.5,1,0,0.5)
         else
               MyTargetBGTex:SetTexCoord(0,0.5,0,0.5)
         end
     end
    
     Back:RegisterEvent("PLAYER_TARGET_CHANGED", MyTargetBGTex_Update)
     Back:RegisterEvent("UNIT_CLASSIFICATION_CHANGED", MyTargetBGTex_Update)
    

    can someone please help me?

    greetings a programming newbie named vyntrox :)

    Which part of it isn't working? Have you tested the individual functionality by calling things directly? WowLua (the addon) can be a big help for doing this. I'd play with the individual bits and see if you can figure out what precisely isn't working.