How to code a Histogram to be in chart window??? | Forex Factory

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How to code a Histogram to be in chart window???

  • #1
  • First Post: Apr 20, 2009 2:57pm Apr 20, 2009 2:57pm
I want to display a tick volume in my chart(not in separate window).....
it needs to look like the default volume on chart of MT4.

Thanks
forexflash
  • #2
  • Apr 21, 2009 10:15am Apr 21, 2009 10:15am
I know that this is simple, so if someone could help, I will realy appreciate it!
forexflash
  • #3
  • Apr 24, 2009 1:01pm Apr 24, 2009 1:01pm
Anyone!??
forexflash
  • #4
  • Apr 24, 2009 1:14pm Apr 24, 2009 1:14pm
I have tried placing a vol indicator on my main chart window and it seems to have no bounds and was filling the whole chart top to bottom with each bar.

Perhaps look at code for marketprofile to see how they do the bars in the main window. Maybe try setting levels for the indicator so it has boundaries.

Sorry I couldn't be more help (I'm not a coder)
The trend always ends.
  • #5
  • Apr 24, 2009 2:38pm Apr 24, 2009 2:38pm
Maybe you could try with no buffer, and ObjectCreate() and ObjectSet().

Lubo.

P.s. It's only an idea, i'm not a coder.
If I know how, I tell You!! Few but Good!!
  • #6
  • Apr 24, 2009 8:46pm Apr 24, 2009 8:46pm
If you don't want to use objects, then I'd find the highest or lowest value in the time frame view and add or subtract that from the ticks. Then you can put it at any level on screen. The server should be running to write this kind of indi.
  • #7
  • Apr 24, 2009 8:57pm Apr 24, 2009 8:57pm
If you want histogram, just use:

SetIndexStyle(0,DRAW_HISTOGRAM);
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  • #8
  • Last Post: Apr 25, 2009 4:28am Apr 25, 2009 4:28am
Quoting kd3726
If you don't want to use objects, then I'd find the highest or lowest value in the time frame view and add or subtract that from the ticks. Then you can put it at any level on screen. The server should be running to write this kind of indi.
I think this could be a way, with or without objects use.

Ff. take a look at this code, i think you can find the way.

Inserted Code
//+------------------------------------------------------------------+
//|                                                 Level Sensor.mq4 |
//|                                          Copyright © 2005, Sfen. |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Sfen"
#property indicator_chart_window
// input parameters
extern int MAX_HISTORY = 500;
extern int STEP = 1;
extern int j = 0;
extern double SDVIG=18;
//----
extern string OBJECT_PREFIX = "LEVELS";
extern int ObjectId = 0;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int init()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double CSH(int shift)
  {
   return (MathMax(Open[shift], Close[shift]));
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double CSL(int shift)
  {
   return (MathMin(Open[shift],Close[shift]));
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
string IntToStr(int X)
  {
    return (DoubleToStr(X, 0));
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
string ObGetUniqueName(string Prefix)
  {
   ObjectId++;
   return (Prefix+" "+IntToStr(ObjectId));
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+

void ObDeleteObjectsByPrefix(string Prefix)
  {
   int L = StringLen(Prefix);
   int i = 0; 
   while(i < ObjectsTotal())
     {
       string ObjName = ObjectName(i);
       if(StringSubstr(ObjName, 0, L) != Prefix) 
         { 
           i++; 
           continue;
         }
       ObjectDelete(ObjName);
     }
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int deinit()
  {
   ObDeleteObjectsByPrefix(OBJECT_PREFIX);
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
  
   string S;
   ObDeleteObjectsByPrefix(OBJECT_PREFIX);
   double HH = 0;
   double LL = 1000000;
   int i;
   int History = MathMin(Bars,MAX_HISTORY);
   for(i = j+1; i < History; i++)
     {
       HH = MathMax(HH, CSH(i));
       LL = MathMin(LL, CSL(i));
     }
   int NumberOfPoints = (HH - LL) / (1.0*Point*STEP) + 1;
   int Count[];
   ArrayResize(Count, NumberOfPoints);
   for(i = j; i < NumberOfPoints; i++) 
       Count[i] = 0;
   for(i = j+1; i < History; i++)
     {
       double C = CSL(i);
       while(C < CSH(i))
         {
           int Index = (C-LL) / (1.0*Point*STEP);
           Count[Index]++;    
           C += 1.0*Point*STEP;
         }
     }
   for(i = j; i < NumberOfPoints; i++)
     {
       double StartX = Time[0]+SDVIG*Period()*60;
       double StartY = LL + 1.0*Point*STEP*i;
       double EndX   = (Time[0+Count[i]]+SDVIG*Period()*60);
       double EndY   = StartY;
       string ObjName = ObGetUniqueName(OBJECT_PREFIX);
       ObjectDelete(ObjName);
       ObjectCreate(ObjName, OBJ_TREND, 0, StartX, StartY, EndX, EndY);
       ObjectSet(ObjName, OBJPROP_RAY, 0);
       ObjectSet(ObjName, OBJPROP_COLOR, Olive);
       ObjectSet(ObjName, OBJPROP_BACK, 1);
     }
   return(0);
  }
//+------------------------------------------------------------------+
If I know how, I tell You!! Few but Good!!
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