Model/Action/Data/OrderCaptureActionData.php
public function getAmount()
    {
        $amount = $this->getRequest()->getRequestParameter('capture_amount');

        return $amount ? $amount : $this->getOrder()->getPayPalOrder()->getRemainingOrderSum();
    }
public function getAmount()
    {
        $amount = $this->getRequest()->getRequestParameter('capture_amount');

        return $amount ? $amount : $this->getOrder()->getPayPalOrder()->getRemainingOrderSum();
    }
public function getAmount ( ) { $ amount = $ this -> getRequest ( ) -> getRequestParameter ( 'capture_amount' ) ; return $ amount ? $ amount : $ this -> getOrder ( ) -> getPayPalOrder ( ) -> getRemainingOrderSum ( ) ; }
returns action amount

@return string
returns action amount