Method btnDisplayResolutionUpClick

src/Menu/OptionsVideoState.cpp:336–349

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

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

/**
 * Selects a smaller display resolution.