ESOUI - Can't make event_combat

Hi again, sorry my english. I'm trying to make something happens when the enemy hits the player, and I have this code now:

Code:

local function MyEventOnHit(result, isError, abilityName, abilityGraphic, abilityActionSlotType, sourceName, sourceType, targetName, targetType, hitValue, powerType, damageType, log)

end

  local wm = GetWindowManager()

  local t = wm:CreateTopLevelWindow(nil)

  t:SetDimensions(32,32)

  t:SetAnchor(CENTER,GuiRoot,CENTER,0,0)

  Tex = wm:CreateControl(nil, t, CT_TEXTURE)

  Tex:SetTexture("TestAddon/textures/tex.dds")

  Tex:SetAnchorFill(t)

  Tex:SetHidden(true)



EVENT_MANAGER:RegisterForEvent(name, EVENT_COMBAT_EVENT, MyEventOnHit)



function MyEventOnHit( eventCode , result , isError , abilityName, abilityGraphic, abilityActionSlotType, sourceName, sourceType, targetName, targetType, hitValue, powerType, damageType, log )

        if targetType == COMBAT_UNIT_TYPE_OTHER then

                if damageType == DAMAGE_TYPE_COLD or

                damageType == DAMAGE_TYPE_DISEASE or

                damageType == DAMAGE_TYPE_DROWN or

                damageType == DAMAGE_TYPE_EARTH or

                damageType == DAMAGE_TYPE_FIRE or

                damageType == DAMAGE_TYPE_GENERIC or

                damageType == DAMAGE_TYPE_MAGIC or

                damageType == DAMAGE_TYPE_NONE or

                damageType == DAMAGE_TYPE_OBLIVION or

                damageType == DAMAGE_TYPE_PHYSICAL or

                damageType == DAMAGE_TYPE_POISON or

                damageType == DAMAGE_TYPE_SHOCK then

                        Tex:SetHidden(false)

                end

        end

end

NOTE: The texture it's just a test to see if it works.

What I want to do is when an enemy (all type of enemies) hits the player, with any damage type, something happen. I don't know if I'm doing this right with that code above. Also, I'm not sure if the targetType it's ok or not. But when I enter the game, and make an enemy attacks me and hits me, nothing happens :/ I'm not really sure I'm doing this right. Can someone help me?
Thank you :)