how to prevent sound from iterating for each signal when loading a multi-day chart

[stafe]

i've added a PlaySound() to an indicator signal that paints a BackBrush and i've tried multiple techniques but they all play every iteration of PlaySound() for the 12 days of indicator signals when the chart is loaded... yikes...
how can i prevent this or maybe i'm omitting a key step in the coding strategy
here's the code i've landed on...
(for some reason the indenting is being stripped out)

private int   savedBar;

if (ShowCDRMsignals && IsFirstTickOfBar && CurrentBar > SlowestEmaP + SlowHmaP )
{

if ( (cumulativeDelta.DeltaClose[2] < FastKmedian[2] && cumulativeDelta.DeltaClose[1] > FastKmedian[1] ) && realMotion[1] > rmsmaF[1]
|| ( (realMotion[2] < rmsmaF[2] && realMotion[1] > rmsmaF[1]) && (cumulativeDelta.DeltaClose[1] > FastKmedian[1]) ) )
{
if (CDRMsignalsFullChart)
{ BackBrushesAll[1] = CDRMLongBrush; }
else
{ BackBrushes[1] = CDRMLongBrush; }

 if (upSignalSound && CurrentBar != savedBar )
{ PlaySound(UpSound);
savedBar = CurrentBar;
}​

thanks

[NinjaTrader_Emily]

Hello stafe,

Thank you for your post.

If you would only like an action to occur in realtime and not during the historical processing of the script, you could add a check for State == State.Realtime nested inside of your condition. For example:

if (upSignalSound && CurrentBar != savedBar )
{
if (State == State.Realtime)
PlaySound(UpSound);
savedBar = CurrentBar;
}​​

Please let us know if we may be of further assistance.

[stafe]

thank you for the response, i'll give that a whirl later this afternoon. I've got other indicators that play sound when their if(then) is satisfied but don't play every iteration when the chart loads... it's got me a little stumped but your suggestion will definitely take care of this latest issue... thanks again

[stafe]

that worked perfectly...

another question along the same vein -- how can i limit signals within an indicator to the current session only if i load 12 days ? i was looking for something like IsCurrentDay or IsCurrentSession but not finding a way through...

i've got another question about the same indicator but regarding the signal strategy itself --- in the code above a crossover check is done between bar[2] and bar[1] -- i tried multiple possibilities with CrossAbove and CrossBelow to see if i could get them to start the lookback of 1 from bar[1] after bar[0] opens but couldn't find a work-around -- would an offset to the method be in order ? ie CrossAbove(ISeries, ISeries, lookback, offset)

thanks

[NinjaTrader_Emily]

that worked perfectly...

another question along the same vein -- how can i limit signals within an indicator to the current session only if i load 12 days ? i was looking for something like IsCurrentDay or IsCurrentSession but not finding a way through...

i've got another question about the same indicator but regarding the signal strategy itself --- in the code above a crossover check is done between bar[2] and bar[1] -- i tried multiple possibilities with CrossAbove and CrossBelow to see if i could get them to start the lookback of 1 from bar[1] after bar[0] opens but couldn't find a work-around -- would an offset to the method be in order ? ie CrossAbove(ISeries, ISeries, lookback, offset)

thanks

Hello stafe,

Thank you for your reply.

To run calculations only for the current session, you could try the suggestions made in the following post:

• https://forum.ninjatrader.com/forum/...urrent-session

You could use the sessionIterator class and compare it with the system's DateTime.Now information to determine if the bar is within the current session or you could compare the Time[0] with the current DateTime.Now information:

• https://ninjatrader.com/support/help...oniterator.htm
• https://forum.ninjatrader.com/forum/...70#post1197370

For your question about CrossAbove and CrossBelow, what do you mean about starting a lookback from 1 bar ago after the current bar opens? No offset may be applied when using the CrossAbove or CrossBelow methods. You would have to potentially create a custom series and save the desired values from 1 bar ago as the currentBar value for that custom series and use that series in the crossover condition.

Please let me know if I may be of further assistance.

[stafe]

thanks for the consideration on the CrossAbove/Below method - an interesting workaround... i may try creating my own method (not likely)

i'll have to read a bit more on the current session check