Can you listen to ability pre-cast?

[short owl]

Basically when you start casting a target or position ability, would like to do extra stuff when targetting before actually casting it

[fluid root]

Are you talking about doing something during the cast point of an ability, before it starts actually doing its effects? In that case I think you're looking for OnAbilityPhaseStart

[fierce gust]

Found 3 functions for OnAbilityPhaseStart

🇸 CDOTABaseAbility:OnAbilityPhaseStart(): bool
🇸 CDOTA_Ability_Lua:OnAbilityPhaseStart(): bool
Cast time begins (return true for successful cast).
🇸 CDOTA_Item_Lua:OnAbilityPhaseStart(): bool
Cast time begins (return true for successful cast).

[fluid root]

or do you mean before you even start the ability at all, and are just hovering the cursor over them? cause i wouldn't know in that case

[short owl]

the hovering part

well hidden but got what i was looking for