Prop file when to return true/false

When handling events in the prop file, when should you be returning true vs false?

Sample case:

case EVENTID(BUTTON_POWER, EVENT_DOUBLE_CLICK, MODE_OFF):
        if (on_pending_) {
          if (SetMute(true)) {
            unmute_on_deactivation_ = true;
          }
          return true;
        }
        return false;

false will just exit the case with no action.

Returning true means that the event has been handled.
If you return false, it may try other ways to handle the event.

Sweet, thank you both for your responses! Very helpful!