cancel buff via spellid?

[b3n9ti]

hello everyone!

couldn't find much on the following, so here it goes:

is there any (be it a macro or an addon etc.) possiblity to cancel a buff by ID?

[Crudor]

No, the responsible API only accepts spell name or buff index. Theoretically you could update a macro to match the index of the buff with the correct spell id. But that would only be possible while not in combat and as such would not be very useful.

You can use GetSpellInfo if you don't know the spell name in a specific localisation, but it's not going to help for 2 spells with the same name...

[S7orm]

/run CancelUnitBuff("player", GetSpellInfo("spellID"))

obviously you can't use this in combat, as you can't cancel buffs in combat

[Soisoisoi]

obviously you can't use this in combat, as you can't cancel buffs in combat

You can. You might have some addon protecting them.

[S7orm]

strange, i didn't test it but the function itself should be tagged nocombat

[Soisoisoi]

strange, i didn't test it but the function itself should be tagged nocombat

Unless you specifically that meant macro, then you definitely can. I'm mid-raid atm and I just cancelled some buffs on the pull.

[S7orm]

good thing to know, it used to be nocombat because of str dps cancelbuff "exploit" with Wotlk legendary 2H

[Crudor]

It is protected in combat for me (on live, zero addons):

An action was blocked in combat because of taint from MACRO_TAINT - CancelUnitBuff()

You really only can do /cancelaura, which doesn't accept lua code.

[b3n9ti]

but it's not going to help for 2 spells with the same name...

so there is no way to achieve that, even when you're out of combat? :-(

[Crudor]

so there is no way to achieve that, even when you're out of combat? :-(

The following code will create and update a macro (called "cancelBySpellID") to remove the spell with spellID (change the first line in the code to the id you want). Just turn it into an addon and drag the macro to your bar.

As stated above, this will only work when out of combat, so it's pretty much useless.

local spellID = 1126
local macroText, macroName, buffIndex, lastIndex, blizz, combat = "/cancelaura %d", "cancelBySpellID", "", "", "Blizzard_MacroUI", false

local function getBuff()
	for i=1,40 do
		if select(11,UnitBuff("player",i)) == spellID then
			return i
		end
	end
	return 0
end

local m = CreateFrame("Frame")
m:RegisterEvent("ADDON_LOADED")
m:RegisterEvent("PLAYER_REGEN_DISABLED")
m:RegisterEvent("PLAYER_REGEN_ENABLED")
m:SetScript("OnEvent",function(self,event,addon)
	if event == "PLAYER_REGEN_DISABLED" then
		combat = true
		EditMacro(macroName, nil, nil, "")
	elseif event == "PLAYER_REGEN_ENABLED" then
		combat = false
	elseif addon == blizz then
		if not GetMacroInfo(macroName) then
			CreateMacro(macroName,"INV_Misc_QuestionMark","")
		end
	end
end)

local f = CreateFrame("Frame")
f:RegisterUnitEvent("UNIT_AURA","player")
f:SetScript("OnEvent",function()
	if not (InCombatLockdown() or combat) then
		if IsAddOnLoaded(blizz) ~= 1 then
			LoadAddOn(blizz)
		end
		
		buffIndex = getBuff()
		
		if buffIndex~=lastIndex then
			lastIndex = buffIndex
			if buffIndex>0 then
				EditMacro(macroName, nil, nil, macroText:format(buffIndex))
			else
				EditMacro(macroName, nil, nil, "")
			end
		end
	end;
end)

[b3n9ti]

The following code will create and update a macro (called "cancelBySpellID") to remove the spell[/CODE]

that is exactly was I was looking for man! :-) :-)

unfortunately though I can't get it to work and simply can't figure out why. (tried it with mark of the wild) I'd really appreciate if you took another look at it!
here's the 'addon version' of what you posted: dl.dropboxusercontent.com/u/41246971/GWM.rar

(can't post proper links yet :P)

[Crudor]

that is exactly was I was looking for man! :-) :-)

unfortunately though I can't get it to work and simply can't figure out why. (tried it with mark of the wild) I'd really appreciate if you took another look at it!
here's the 'addon version' of what you posted: dl.dropboxusercontent.com/u/41246971/GWM.rar

(can't post proper links yet :P)

Indeed there was a little typo, should work now:

local spellID = 1126
local macroText, macroName, buffIndex, lastIndex, blizz, combat = "/cancelaura %d", "cancelBySpellID", "", "", "Blizzard_MacroUI", false

local function getBuff()
	for i=1,40 do
		if select(11,UnitBuff("player",i)) == spellID then
			return i
		end
	end
	return 0
end

local m = CreateFrame("Frame")
m:RegisterEvent("ADDON_LOADED")
m:RegisterEvent("PLAYER_REGEN_DISABLED")
m:RegisterEvent("PLAYER_REGEN_ENABLED")
m:SetScript("OnEvent",function(self,event,addon)
	if event == "PLAYER_REGEN_DISABLED" then
		combat = true
		EditMacro(macroName, nil, nil, "")
	elseif event == "PLAYER_REGEN_ENABLED" then
		combat = false
	elseif addon == blizz then
		if not GetMacroInfo(macroName) then
			CreateMacro(macroName,"INV_Misc_QuestionMark","")
		end
	end
end)

local f = CreateFrame("Frame")
f:RegisterUnitEvent("UNIT_AURA","player")
f:SetScript("OnEvent",function()
	if not (InCombatLockdown() or combat) then
		if IsAddOnLoaded(blizz) ~= 1 then
			LoadAddOn(blizz)
		end
		
		buffIndex = getBuff()
		
		if buffIndex~=lastIndex then
			lastIndex = buffIndex
			if buffIndex>0 then
				EditMacro(macroName, nil, nil, macroText:format(buffIndex))
			else
				EditMacro(macroName, nil, nil, "")
			end
		end
	end;
end)

[b3n9ti]

should work now

works flawlessly now! thanks soooo much! :-) :-)