ISmartTagAction::Action Target is null with PowerPoint

Question

Is there a way for the Target parameter to reference a PowerPoint object when ISmartTagAction::Action is called by PowerPoint?

I have a smart tag that will recognize text in PowerPoint but when the Action method is called the Target is null. If I do the same thing in Word the Target is set to a Word.Range object, and if I do the same thing in Excel the Target is set to a Excel.Range object.