WoWInterface - RegisterUnitEvent ... UNIT

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- - RegisterUnitEvent ... UNIT_AURA (https://www.wowinterface.com/forums/showthread.php?t=58097)

RegisterUnitEvent ... UNIT_AURA

Hi,

I'm trying to mess with unit auras and code below does nothing for me.
I'm talking classic wow.

Can i do that somehow?

I tried with hooksecurefunc but that works on target and player... not on pet... at least I couldn't find anything.

Question is: can I track pet auras as an event?

Thank you

Code:

local Pet()

print("function)

end



local Target()

print("function)

end



local f = CreateFrame("Frame")

frame:RegisterUnitEvent("UNIT_AURA", "pet")

frame:SetScript("OnEvent", Pet)



local f = CreateFrame("Frame")

frame:RegisterUnitEvent("UNIT_AURA", "target")

frame:SetScript("OnEvent", Target)



THIS WORKS ... but  there is nothing to track pet auras similar to this (or?)

hooksecurefunc("TargetFrame_UpdateAuras", Target)

Are you sure this code is running at all? It has some obvious syntax errors...

Have you enabled your error messages?

Code:

/console scriptErrors 1

I think your

Code:

local Pet()

print("function)

end

should really be

Code:

local function Pet()

  print("This is Pet()... or something.")

end

Furthermore, you are creating your frame as f, but use the variable name frame afterwards. This should throw an error, too.

Then you are using frame:SetScript() for "OnEvent" twice.
The second script assignment will override the first.

Sometimes when tired you make the most embarrassing errors... like declaring f and using frame afterward :confused: :confused: :confused:

Thank you tho.

A single frame can monitor multiple events or in this case, the same event for more than one unit.

Lua Code:

local function AuraCheck(self, event, ...)
    local unit = ...
    if unit == "target" then
        print("Target Aura changed!")
    elseif unit == "pet" then
        print("Pet Aura changed!")
    end
end
 
local f = CreateFrame("Frame")
f:RegisterUnitEvent("UNIT_AURA", "target", "pet")
f:SetScript("OnEvent", AuraCheck)

You can only register a maximum of two units with RegisterUnitEvent but if you need more, you could just use RegisterEvent and extend the unit checking in the event function.

Thank you. That was helpful.

Could you be so kind and tell me just one more thing... is there an easy way to know when some frame is opened (like CharcterFrame or TalentFrame)?

Some of them have events like MERCHANT_SHOW, BANKFRAME_OPENED...

If there is no event that fires when a frame is shown, you can try hooking that frame's OnShow script (if it has one).

For CharcterFrame you can simply do:

Code:

hooksecurefunc(CharcterFrame, "Show", function() print("Showing CharcterFrame") end)

hooksecurefunc(CharcterFrame, "Hide", function() print("Hiding CharcterFrame") end)

But for PlayerTalentFrame (and others like ArchaeologyFrame, InspectFrame, AuctionHouseFrame, ClassTrainerFrame) it is a bit more complicated, because these frames do not exist yet after login. You have to wait with your hook until after they are created, and that is what these events you are mentioning can be helpful for. So for PlayerTalentFrame you could do:

Code:

local playerTalentFrameHooked = false

local addonLoadedFrame = CreateFrame("Frame")

addonLoadedFrame:RegisterEvent("ADDON_LOADED")

addonLoadedFrame:SetScript("OnEvent", function(self, event, arg1, ...)

  if not playerTalentFrameHooked and arg1 == "Blizzard_TalentUI" then

    hooksecurefunc(PlayerTalentFrame, "Show", function() print("Showing PlayerTalentFrame") end)

    hooksecurefunc(PlayerTalentFrame, "Hide", function() print("Hiding PlayerTalentFrame") end)

    playerTalentFrameHooked = true

  end

end)

Oh yeah.. thank you so much .. and for fast answers as well...

I would usually hook the frame's OnShow/OnHide handlers. (As Seerah mentioned before)

Lua Code:

frame:HookScript("OnShow",function(self)
-- Do something
end);
 
frame:HookScript("OnHide",function(self)
-- Do something
end);

What are the cases where you would feel the difference between these two?

Code:

frame:HookScript("OnShow",function(self)

-- Do something

end);

Code:

hooksecurefunc(frame, "Show", function(self)

-- Do something

end);

Sometimes a frame's Show widget, or at least the pointer you can hook, isn't used to show the frame. The OnShow handler is guaranteed to fire every time the frame shows.