Get pushed button

I'm try this in wddobeforeaction() with the code:

DATA: lo_api_controller TYPE REF TO if_wd_view_controller,
         lo_action         TYPE REF TO if_wd_action.

lo_api_controller ?= wd_this->wd_get_api( ).
lo_action = lo_api_controller->get_current_action( ).

IF lo_action IS BOUND.
     IF lo_action->name EQ 'SEND'.

     "code

ENDIF.

ENDIF.

But not works. lo_action->name is initial and lo_action is not bound.

Thanks.