/**
* Intvals all piVars that are supposed to be integers:
* showUid, pointer, mode
*
* If some piVars are not set or no piVars array is defined yet, this
* function will set the not yet existing piVars to zero.
*
* @param string[] $additionalPiVars
* keys for $this->piVars that will be ensured to exist as ints in
* $this->piVars as well
*
* @return void
*/
public function ensureIntegerPiVars(array $additionalPiVars = array())
{
parent::ensureIntegerPiVars($additionalPiVars);
}
