Help Requested: Getting Price Updates in Realtime Quotes but Chart not updating

#1
I am using IB Realtime feed from IB TWS through the IB connector in Amibroker.

I am getting price updates in the Realtime Quote Window of Amibroker. However, the chart when started gets backfill from IB and draws itself, but after that does not update as new prices come in.

I am posting below the AFL code from the "Edit Formula" option when we right-click the Amibroker Chart. Request please advise why my Chart is not updating. This is the first time I am trying to run Amibroker.

_SECTION_BEGIN("Price");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) Vol " +WriteVal( V, 1.0 ) +" {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 )) ));
Plot( C, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
if( ParamToggle("Tooltip shows", "All Values|Only Prices" ) )
{
ToolTip=StrFormat("Open: %g\nHigh: %g\nLow: %g\nClose: %g (%.1f%%)\nVolume: "+NumToStr( V, 1 ), O, H, L, C, SelectedValue( ROC( C, 1 )));
}
_SECTION_END();

_SECTION_BEGIN("MA");
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 200, 1 );
Plot( MA( P, Periods ), _DEFAULT_NAME(), ParamColor( "Color", colorCycle ), ParamStyle("Style") );
_SECTION_END();

_SECTION_BEGIN("Mid MA");
P = ParamField("Price field",-1);
Periods = Param("Periods", 45, 2, 200, 1 );
Plot( MA( P, Periods ), _DEFAULT_NAME(), ParamColor( "Color", colorCycle ), ParamStyle("Style") );
_SECTION_END();

_SECTION_BEGIN("Long MA");
P = ParamField("Price field",-1);
Periods = Param("Periods", 100, 2, 200, 1 );
Plot( MA( P, Periods ), _DEFAULT_NAME(), ParamColor( "Color", colorCycle ), ParamStyle("Style") );
_SECTION_END();

_SECTION_BEGIN("BBands");
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 100, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorLightGrey );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style );
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style );
_SECTION_END();

_SECTION_BEGIN("Volume");
Plot( Volume, _DEFAULT_NAME(), ParamColor("Color", colorLavender ), styleNoTitle | ParamStyle( "Style", styleHistogram | styleOwnScale | styleThick | styleNoLabel, maskHistogram ), 2 );
_SECTION_END();

_SECTION_BEGIN("Price Interpretation");
movshort = ParamField("Short Time MA", 8 );
movmed = ParamField("Mid Time MA", 9 );
movlong = ParamField("Long Time MA", 10 );
btop = ParamField("BBTop", 11 );
bbot = ParamField("BBBottom", 12 );
if( Status("action") == actionCommentary )
{
width = btop - bbot;
lslop = LinRegSlope( C, 30 ) + 100;
lslo = LLV( lslop, 90 );
lshi = HHV( lslop, 90 );
lswidth = lshi - lslo;
trend = 100*( lslop - lslo )/lswidth;

mawidth = MA( width, 100 );
relwidth = 100*(width - mawidth)/mawidth;

_N( tname = Name()+"("+FullName()+")" );

printf("Price and moving averages:\n");
printf( tname + " has closed " + WriteIf( C > movshort, "above" , "below" ) + " its Short time moving average. ");

printf("\nShort time moving average is currently " + WriteIf( movshort > movmed, "above", "below") + " mid-time, AND " + WriteIf( movshort > movlong, "above", "below" ) + " long time moving averages.");

printf("\nThe relationship between price and moving averages is: "+
WriteIf( C > movshort AND movshort > movmed, "bullish",
WriteIf( C < movshort AND movshort < movmed, "bearish", "neutral" ) ) + " in short-term, and "+
WriteIf( movshort > movmed AND movmed > movlong , "bullish",
WriteIf( movshort < movmed AND movmed < movlong, "bearish", "neutral" ) ) + " in mid-long term. ");

printf("\n\nBollinger Bands:\n");
printf(tname+ " has closed " +
WriteIf( C < bbot, "below the lower band by " +
WriteVal( 100 *( bbot-C )/ width, 1.1 ) + "%%. " +
WriteIf( trend < 30, " This combined with the steep downtrend can suggest that the downward trend in prices has a good chance of continuing. However, a short-term pull-back inside the bands is likely.",
WriteIf( trend > 30 AND trend < 70, "Although prices have broken the lower band and a downside breakout is possible, the most likely scenario for "+tname+" is to continue within current trading range.", "" ) ), "" ) +

WriteIf( C > btop, "above the upper band by " +
WriteVal( 100 *( C- btop )/ width, 1.1 ) + "%%. " +
WriteIf( trend > 70, " This combined with the steep uptrend suggests that the upward trend in prices has a good chance of continuing. However, a short-term pull-back inside the bands is likely.",
WriteIf( trend > 30 AND trend < 70, "Although prices have broken the upper band and a upside breakout is possible, the most likely scenario for "+tname+" is to continue within current trading range.", "" ) ), "" ) +

WriteIf( C < btop AND ( ( btop - C ) / width ) < 0.5,
"below upper band by " +
WriteVal( 100 *( btop - C )/ width, 1.1 ) + "%%. ",
WriteIf( C < btop AND C > bbot , "above bottom band by " +
WriteVal( 100 *( C - bbot )/ width, 1.1 ) + "%%. ", "" ) ));

printf("\n"+
WriteIf( ( trend > 30 AND trend < 70 AND ( C > btop OR C < bbot ) ) AND abs(relwidth) > 40,
"This picture becomes somewhat unclear due to the fact that Bollinger Bands are currently",
"Bollinger Bands are " )+
WriteVal( abs( relwidth ), 1.1 ) + "%% " +
WriteIf( relwidth > 0, "wider" , "narrower" ) +
" than normal.");

printf("\n");

printf(
WriteIf( abs( relwidth ) < 40, "The current width of the bands (alone) does not suggest anything conclusive about the future volatility or movement of prices.","")+
WriteIf( relwidth < -40, "The narrow width of the bands suggests low volatility as compared to " + tname + "'s normal range. Therefore, the probability of volatility increasing with a sharp price move has increased for the near-term. "+
"The bands have been in this narrow range for " + WriteVal(BarsSince(Cross(-40,relwidth)),1.0) + " bars. The probability of a significant price move increases the longer the bands remain in this narrow range." ,"")+
WriteIf( relwidth > 40, "The large width of the bands suggest high volatility as compared to " + tname + "'s normal range. Therefore, the probability of volatility decreasing and prices entering (or remaining in) a trading range has increased for the near-term. "+
"The bands have been in this wide range for " + WriteVal(BarsSince(Cross(relwidth,40)),1.0) + " bars.The probability of prices consolidating into a less volatile trading range increases the longer the bands remain in this wide range." ,""));

printf("\n\nThis commentary is not a recommendation to buy or sell. Use at your own risk.");
}
_SECTION_END();
 

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