A function included in the GECK version 184.108.40.206.
Returns 1 if the quest is completed, otherwise 0.
(IsCompleted:int) GetQuestCompleted QuestID:ref
(IsCompleted:int) GetQC QuestID:ref
- This function does not require the quest to be running, and will return the correct value if the quest has been halted using StopQuest or similar.