-- Put this somewhere after everything has loaded (i.e a function that's called via a callback / timer -- OnLoad does not work)
 
local raw = Tooltip.GetItemTooltipForm or error("Unable to get Tooltip.GetItemTooltipForm")
function Tooltip.GetItemTooltipForm(luaCaller, wndParent, itemSource, tFlags, nCount)
	-- Pass args, collect result from raw/old function
	local wndTooltip, wndTooltipComp = raw(luaCaller, wndParent, itemSource, tFlags, nCount)
	-- Do your magic with the tooltip here. I think something like this will work,
	-- but you should of course check that the item is in a gear set first:
 
	-- Also, you could probably hack together something that will have it's own gear set form,
	-- but I'm not quite sure how to do that :)
 
	-- I'll try the item header for now, but this will not work with the currently equipped item
	-- in comparisons (even though I tried; probably being updated somewhere in ToolTips, in a
	-- local function.):
 
	local wndHeader = wndTooltip:FindChild("CurrentHeader")
		  wndHeader:SetText("[Gear Set]" .. (tFlags.bNotEquipped and " [Equipped]" or "")) -- This flag seems to work only in comparisons.
		  wndHeader:Show(true)
 
	return wndTooltip, wndTooltipComp
end

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