First left bar in window

SemperAugustus 2014.02.10 09:36

Is there a way to identify the first visible bar on the left in the chart window? That value changes every time when bars are added to the right and when zooming in or out.

qjol 2014.02.10 09:41 #1

WindowBarsPerChart()

Simon Gniadkowski 2014.02.10 09:51 #2

SemperAugustus:
Is there a way to identify the first visible bar on the left in the chart window? That value changes every time when bars are added to the right and when zooming in or out.

WindowFirstVisibleBar()

SemperAugustus 2014.02.10 12:18 #3

Thanks.

William Roeder 2014.02.10 13:19 #4

                                                         #define WINDOW_MAIN 0
void     GetChartLimits(int&iLeft, int&iRight, double&top, double&bot,int iW=0){
   top      = WindowPriceMax(iW);   iLeft    = WindowFirstVisibleBar();
   bot      = WindowPriceMin(iW);   iRight   = iLeft-WindowBarsPerChart();
   if(top-bot < pips2dbl)  top    = bot+pips2dbl;     // Avoid scroll bug / div0
   if(iRight < 0)          iRight = 0;                // Chart is shifted.
}  // GetChartLimits
////////////////////////////////////////////////////////////////////////////////
int start(){
   int iL, iR; double pT, pB; GetChartLimits(iL, iR, pT, pB);
   Print("Left most bar started on " + TimeToStr(Time[iL], TIME_MINUTES) );

Not hard if you RTFM

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