WoWInterface - Tooltip scanning issues

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- - Tooltip scanning issues (https://www.wowinterface.com/forums/showthread.php?t=46111)

Tooltip scanning issues

EDIT: Nevermind, I eventually figured it out.

Sigh - I have the following code:

Code:

print("==LOADED==")



MyScanningTooltip = CreateFrame( "GameTooltip", "MyScanningTooltip", nil, "GameTooltipTemplate" ); -- Tooltip name cannot be nil

MyScanningTooltip:SetOwner( WorldFrame, "ANCHOR_NONE" );



MyScanningTooltip:ClearLines()

 



local function EnumerateTooltipLines_helper(...)

  print("EnumerateTooltipLines_helper")

    for i = 1, select("#", ...) do

    print(i)

        local region = select(i, ...)

        if region and region:GetObjectType() == "FontString" then

            local text = region:GetText() -- string or nil

            if text ~= nil then 

                print("=="..text.."==")

            else

                print("NIL!")

            end

        end

    end

end



function EnumerateTooltipLines(tooltip) -- good for script handlers that pass the tooltip as the first argument.

    EnumerateTooltipLines_helper(tooltip:GetRegions())

end



MyScanningTooltip:ClearLines()

MyScanningTooltip:SetBagItem(bagID, bagSlotID);

EnumerateTooltipLines_helper(MyScanningTooltip:GetRegions())

Problem is, it returns a lot of nil lines, and I'm not entirely sure how tooltip scanning is supposed to work. Help?

Enumerating regions is not really ideal... not only will it give you things that aren't fontstrings, but it'll give you all the fontstrings in the tooltip, even the ones that aren't in use. Here's a better way:

Code:

for i = 1, MyScanningTooltip:NumLines() do

    local left = _G["MyScanningTooltipTextLeft"..i]

    local text = left:GetText()

    if text and text ~= "" then

        -- do something with the text

    end

end

Also, when using the SetX methods (SetBagItem, SetItem, SetSpell, etc.) it's not necessary to use ClearLines; that happens automatically. The only reason to use ClearLines is to redraw the contents of an open tooltip without reopening it, and I can't really think of any good use-cases for doing that either.