how to get a visibleItemID from transmog

[saxitoxin]

I'm looking around Transmogrification_Functions for a replacement API for GetTransmogrifySlotInfo().
I think that C_Transmog.GetSlotVisualInfo() will get me the name or itemID of the selected item, but when I
try to get the info by using print(C_Transmog.GetSlotInfo(1)) i get the following error

3x SX_WallpaperKit_v.2\setup.lua:135: Usage: GetSlotInfo(slot, type)
[C]: in function `GetSlotInfo'
SX_WallpaperKit_v.2\setup.lua:135: in function <SX_WallpaperKit_v.2\setup.lua:132>

Locals:
(*temporary) = 1
(*temporary) = nil

now I have no idea what to put in as type


my plan was to do this until I found out that GetTransmogrifySlotInfo() was removed:

*** CREATING MAINFRAME AND OTHER STUFF HERE ***
 
local gearEditBox = CreateFrame("EditBox",nil,mainFrame,"InputBoxTemplate") 
gearEditBox:SetSize(128,32) 
gearEditBox:SetPoint("BOTTOM")
gearEditBox:IsNumeric()
gearEditBox:SetText("|cffff0000 NO GEAR LIST ")
gearEditBox:SetJustifyH("CENTER")
gearEditBox:SetAutoFocus(false)
 
local copyGearList = CreateFrame("BUTTON", nil, gearEditBox)
copyGearList:SetSize(16, 16)
copyGearList:SetPoint("BOTTOM", gearEditBox, "TOP")
copyGearList:SetNormalTexture("Interface\\Buttons\\UI-SpellbookIcon-NextPage-Up")
copyGearList:SetPushedTexture("Interface\\Buttons\\UI-SpellbookIcon-NextPage-Down")
 
 
local gearList = {}
 
copyGearList:SetScript("OnMouseUp", function(self, button)
    
    gearList = table.wipe(gearList)
 
    for slotId = 1,19 do
        local canTransmogrify = select(2, GetTransmogrifySlotInfo(slotId))
        local visibleItemID = select(6, GetTransmogrifySlotInfo(slotId))
 
        if canTransmogrify then
            if slotId == 19 then 
                table.insert(gearList, "[ "..slotId.."] = ".. visibleItemID) 
            else
                table.insert(gearList, "[ "..slotId.."] = ".. visibleItemID..", ")
            end
        end 
    end
 
    gearEditBox:SetText(gearList)
    print("|cff6699FFSX |cffffff00WallpaperKit|r: Gear list copied")
end)