Support Board

/*****************************************************************************
  This is a C++ source code file. This file contains example Advanced Custom
  Study functions. It also contains functions for some built-in studies
  in Sierra Chart.
*****************************************************************************/

#include "sierrachart.h"

/****************************************************************************/

SCDLLName("OS Marker")


SCSFExport scsf_OSMarker(SCStudyInterfaceRef sc)
{
  SCSubgraphRef OSHigh = sc.Subgraph[0];
  SCSubgraphRef OSLow = sc.Subgraph[1];
  SCSubgraphRef OSRange = sc.Subgraph[2];
  
  
  // Set configuration variables
  if (sc.SetDefaults)
  {
    
    sc.GraphName = "OS Marker";
    sc.StudyDescription = "Marks the Opening Swing High and Low";
    
    sc.Input[1].Name = "Day Session Start";
    sc.Input[1].SetTime(HMS_TIME(8,30,0));
    
    sc.Input[2].Name = "Day Session End";
    sc.Input[2].SetTime(HMS_TIME(15,14,59));    
    
    
    // Set the region to draw the graph in. Region zero is the main
    // price graph region.
    sc.GraphRegion = 0;
    
    // Set the name of the first subgraph
    OSHigh.Name = "Opening Swing High";
    OSLow.Name = "Opening Swing Low";
    
    sc.AutoLoop = 1;
    
    // During development set this flag to 1, so the DLL can be modified. When development is completed, set it to 0 to improve performance.
    sc.FreeDLL = 0;
    
    // Must return before doing any data processing if sc.SetDefaults is set
    return;
  }
// Bar index of beginning of trading day for bar at current index. This depends upon auto looping being true.

int &dateToday = sc.PersistVars->i1;

SCDateTime BarDateTime = sc.BaseDateTimeIn[sc.Index];
dateToday = BarDateTime.GetDate();
SCDateTime StartTimeToday;
SCDateTime EndTimeToday;
float OSHighNum = sc.PersistVars->f1;
float OSLowNum = sc.PersistVars->f2;

StartTimeToday.SetDateTime(dateToday, sc.Input[1].GetTime());
EndTimeToday.SetDateTime(dateToday, sc.Input[2].GetTime());

int StartOfDayIndex = sc.GetContainingIndexForSCDateTime(sc.ChartNumber, StartTimeToday);
int EndOfDayIndex = sc.GetContainingIndexForSCDateTime(sc.ChartNumber, EndTimeToday);

if(sc.Index == StartOfDayIndex) {
  OSHighNum = sc.BaseData[SC_HIGH][StartOfDayIndex];
  OSLowNum = sc.BaseData[SC_LOW][StartOfDayIndex];
  OSHigh[sc.Index] = OSHighNum;
OSLow[sc.Index] = OSLowNum;
  
  OSHigh.ExtendedArrayElementsToGraph = 10;
  OSLow.ExtendedArrayElementsToGraph = 10;

}  
  else {
    OSHigh[sc.Index] = OSHigh[sc.Index - 1];
    OSLow[sc.Index] = OSLow[sc.Index - 1];
  }

}

#include "sierrachart.h"

SCDLLName("HighLowBar")

SCSFExport scsf_HighLowBar(SCStudyInterfaceRef sc)
{

SCSubgraphRef hValue = sc.Subgraph[0];
SCSubgraphRef lValue = sc.Subgraph[1];

if (sc.SetDefaults) {

sc.GraphName = "HighLowBar";
sc.StudyDescription = "HighLowBar - Calculate High/Low for a Single Bar";
sc.GraphDrawType = GDT_CUSTOM;
sc.GraphRegion = 0;
sc.FreeDLL = 0;
sc.AutoLoop = 1;

hValue.Name = "HighValue";
hValue.DrawStyle = DRAWSTYLE_RIGHTHASH;
hValue.PrimaryColor = COLOR_DARKGRAY;
hValue.DrawZeros = false;

lValue.Name = "LowValue";
lValue.DrawStyle = DRAWSTYLE_RIGHTHASH;
lValue.PrimaryColor = COLOR_DARKGRAY;
lValue.DrawZeros = false;

return;
}

int &lastIndex = sc.GetPersistentInt(0);

if (sc.UpdateStartIndex == 0) {
lastIndex = -1;
}

int i = sc.Index;

if (lastIndex == sc.Index) {
return;
}
lastIndex = sc.Index;

hValue[i] = hValue[i - 1];
lValue[i] = lValue[i - 1];

if (sc.BaseDateTimeIn[i - 2].GetTime() < sc.SessionStartTime()
&& sc.BaseDateTimeIn[i - 1].GetTime() >= sc.SessionStartTime()) {
hValue[i] = sc.High[i - 1];
lValue[i] = sc.Low[i - 1];
}

return;
}