Don't think there's an existing hook for it. I guess you could try to add it or request it. Regardless, wouldn't it be more elegant to use the Blizzlike currency system? I guess that might require a client-side patch for new entries in CurrencyType.dbc and maybe CurrencyCategory.dbc, unless you want to reuse an existing currency. You could maybe recycle item ID 37711: [Currency Token Test Token 1], it defaults to the "Miscellaneous" currency category and you could change the name and tooltip of the item server-side. That way, items in the vendor page would also have the right cost displayed. I don't know if that fits your design goal, though.

^there isn't any part of this that isn't great

I made a custom secondary class resource with TrinityCore, Eluna and AIO. I couldn't find an Eluna PlayerHook for when a cast is initiated, only when it finishes successfully, so I had to hack that in (poorly, probably). Handlers for the new hook can return false to stop the cast. What's the best place to request for a new PlayerHook to be added to Eluna?

[media:1ee6a4j3]https://www.youtube.com/watch?v=qHSFOsNAs_A[/media:1ee6a4j3]

So do I need to put my lua and xml files back into my original WoW patches? I only have them in a new mpq patch atm.

No, that's never something you should do (probably). I meant inside the actual WoW game folder, not in an archive. As for checking whether the MPQ is getting loaded, I may have jumped the gun a little with my advice. It seems the guide has you create a THIRD row of class icons, and I'm not sure how this interacts with the interface so I'll actually try to follow the guide and give an update in a moment.

Thank you very much for making and updating this tool.

I have a few suggested features:
-SpellFamilyFlags fields (not to be confused with masks)
-option to filter spell names
-configurable dropdown lists (for example, if I add a new Mechanic Type or Aura Name, I'd like to be able to add those without opening Spell.DBC in a DBC editor). I guess it should be editable in a config file or something.
-annotated SpellFamilyNames (for example, if a spell has SpellFamilyName 3, it would be nice if the program noted that this is, by default, the mage family)

I get these errors when compiling.

If you're trying to add custom class spellscripts, I just tried this and it seemed to work fine:

Core:
Right click scriptsSpells folder in solution explorer.
Add new item, name it spell_<class>.cpp (just like the existing class script files).
Add whatever you like to your new spell_<class>.cpp. look at existing class spell script files for examples. If you copy+paste, remember to rename sensibly.
Rebuild scripts and worldserver.

SQL:
add entries for your spell scripts in world.spell_script_names

If you just want to test that it works, in Spell.dbc make a duplicate of a spell that relies on a script to work (for example, priests' Guardian Spirit: 47788), check in-game that the original works but the duplicate doesn't (because it has a different spell ID and so doesn't get to use the script yet), then add a new spell script for your duplicate that's exactly the same as the script of the original, with the only difference being the script's classname. Don't forget to add an entry in world.spell_script_names for your duplicate, that's what ties a spell ID (in Spell.dbc) to the script.

By the way, I was making notes for an updated TrinityCore custom class guide and I couldn't figure out why you had to edit playermethods.h, worldsession.cpp and worldsession.h. What did you change in those files?

UnitPopup.lua has the clientside unitframe menu.

3.3.5a:
elseif ( value == "DUNGEON_DIFFICULTY" ) then
if ( UnitLevel("player") < 65 and GetDungeonDifficulty() == 1 ) then
UnitPopupShown[UIDROPDOWNMENU_MENU_LEVEL][index] = 0;
end
elseif ( value == "RAID_DIFFICULTY" ) then
if ( UnitLevel("player") < 65 and GetRaidDifficulty() == 1 ) then
UnitPopupShown[UIDROPDOWNMENU_MENU_LEVEL][index] = 0;
end
Change 65 to whatever you want.

Looks cool already. Looking forward to progress.