Method btnDisplayResolutionDownClick

src/Menu/OptionsVideoState.cpp:355–368

* Selects a smaller display resolution. * @param action Pointer to an action. */

 * @param action Pointer to an action.
 */
void OptionsVideoState::btnDisplayResolutionDownClick(Action *)
{
	if (_resAmount == 0)
		return;
	if (_resCurrent >= _resAmount-1)
	{
		_resCurrent = 0;
	}
	else
	{
		_resCurrent++;
	}
	updateDisplayResolution();
}

/**
 * Updates the display resolution based on the selection.