[Xrystal]

I found these in the TalentUI lua file which may help you - good luck

local activeTalentGroup, numTalentGroups = GetActiveSpecGroup(false), GetNumSpecGroups(false);
PlayerTalentFrame.primaryTree = GetSpecialization(PlayerTalentFrame.inspect, false, PlayerTalentFrame.talentGroup);
local primaryTree = GetSpecialization(false, false, spec.talentGroup);

local numSpecs = GetNumSpecializations(false, self.isPet);
for i = 1,numSpecs do
local _, name, description, icon = GetSpecializationInfo(i, false, self.isPet, nil, sex);
local role = GetSpecializationRole(i, false, self.isPet);
end

Where specs is this local table and spec an element in it

local specs = {
    ["spec1"] = {
        name = SPECIALIZATION_PRIMARY,
        nameActive = TALENT_SPEC_PRIMARY_ACTIVE,
        specName = SPECIALIZATION_PRIMARY,
        specNameActive = SPECIALIZATION_PRIMARY_ACTIVE,
        talentGroup = 1,
        tooltip = SPECIALIZATION_PRIMARY,
        defaultSpecTexture = "Interface\\Icons\\Ability_Marksmanship",
    },
    ["spec2"] = {
        name = SPECIALIZATION_SECONDARY,
        nameActive = TALENT_SPEC_SECONDARY_ACTIVE,
        specName = SPECIALIZATION_SECONDARY,
        specNameActive = SPECIALIZATION_SECONDARY_ACTIVE,
        talentGroup = 2,
        tooltip = SPECIALIZATION_SECONDARY,
        defaultSpecTexture = "Interface\\Icons\\Ability_Marksmanship",
    },
};