Operator Return Items

RUNNING_MODAL:

Running Modal.

Keep the operator running with blender.

CANCELLED:

Cancelled.

The operator exited without doing anything, so no undo entry should be pushed.

FINISHED:

Finished.

The operator exited after completing its action.

PASS_THROUGH:

Pass Through.

Do nothing and pass the event on.

INTERFACE:

Interface.

Handled but not executed (popup menus).