Alert on daily open

Here is the code for the chart study:

def newDay = GetDay() <> GetDay()[1];
rec priceOpen = if newDay then open else priceOpen[1];
plot dailyOpen = priceOpen;
plot crossAboveOpen = !newDay and close[1] < dailyOpen[1] and close > dailyOpen;
crossAboveOpen.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);
crossAboveOpen.SetDefaultColor(Color.CYAN);
crossAboveOpen.SetLineWeight(3);
Alert(crossAboveOpen, "Cross Above Open", Alert.BAR, Sound.RING);

Here is the code for the scan:

def newDay = GetDay() <> GetDay()[1];
rec priceOpen = if newDay then open else priceOpen[1];
def crossAboveOpen = !newDay and close[1] < priceOpen[1] and close > priceOpen;
plot scan = crossAboveOpen;

Screenshot below shows what the chart study looks like with arrows. Audible alerts will trigger at those arrows. Arrows can repaint of the close of the bar moves back below the daily open.