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period_converter_all.mq4

Time: 2016-06-19 | Download file:period_converter_all.mq4

//+------------------------------------------------------------------+
//|                                             Period_Converter.mq4 |
//|                 Copyright © 2005-2007, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"
#property show_inputs
#include 

extern int ExtPeriodMultiplier=3; // new period multiplier factor
int        ExtHandle=-1;
//+------------------------------------------------------------------+
//| script program start function                                    |
//+------------------------------------------------------------------+
int start()
  {
   int    i, j, start_pos, i_time, time0, last_fpos, periodseconds;
   double d_open, d_low, d_high, d_close, d_volume, last_volume;
   int    hwnd=0,cnt=0;
//---- History header
   int    version=400;
   string c_copyright;
   string c_symbol=Symbol();
//   int    i_period=Period()*ExtPeriodMultiplier;
   int    i_period;
   int    i_digits=Digits;
   int    i_unused[13];
//----  
   for ( j = 1;j < 9;j++)
   {
      switch (j)
      {
        case 1: i_period=Period()* 5;
                break;
        case 2: i_period=Period()* 15;
                break;
        case 3: i_period=Period()* 30;
                break;
        case 4: i_period=Period()* 60;
                break;
        case 5: i_period=Period()* 240;
                break;
        case 6: i_period=Period()* 1440;
                break;
        case 7: i_period=Period()* 10080;
                break;
        case 8: i_period=Period()* 43200;
                break;
      }
      
   if(ExtHandle>=0) { FileClose(ExtHandle); ExtHandle=-1; }
   ExtHandle=FileOpenHistory(c_symbol+i_period+".hst", FILE_BIN|FILE_WRITE);
   if(ExtHandle < 0) return(-1);
   
// reset variables for new file creation
   Print(" Begin writing to ", i_period, " file");
   Comment(" Begin writing to ",  i_period, " file","\n");

   hwnd=0;cnt=0;
//---- write history file header
   c_copyright="(C)opyright 2003, MetaQuotes Software Corp.";
   FileWriteInteger(ExtHandle, version, LONG_VALUE);
   FileWriteString(ExtHandle, c_copyright, 64);
   FileWriteString(ExtHandle, c_symbol, 12);
   FileWriteInteger(ExtHandle, i_period, LONG_VALUE);
   FileWriteInteger(ExtHandle, i_digits, LONG_VALUE);
   FileWriteInteger(ExtHandle, 0, LONG_VALUE);       //timesign
   FileWriteInteger(ExtHandle, 0, LONG_VALUE);       //last_sync
   FileWriteArray(ExtHandle, i_unused, 0, 13);
//---- write history file
   periodseconds=i_period*60;
   start_pos=Bars-1;
   d_open=Open[start_pos];
   d_low=Low[start_pos];
   d_high=High[start_pos];
   d_volume=Volume[start_pos];
   //---- normalize open time
   i_time=Time[start_pos]/periodseconds;
   i_time*=periodseconds;
   for(i=start_pos-1;i>=0; i--)
     {
      time0=Time[i];
      //---- history may be updated
      if(i==0)
        {
         //---- modify index if history was updated
         if(RefreshRates())
            i=iBarShift(NULL,0,time0);
        }
      //----
      if(time0>=i_time+periodseconds || i==0)
        {
         if(i==0 && time0d_high) d_high=High[0];
            d_close=Close[0];
           }
         last_fpos=FileTell(ExtHandle);
         last_volume=Volume[i];
         FileWriteInteger(ExtHandle, i_time, LONG_VALUE);
         FileWriteDouble(ExtHandle, d_open, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_low, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_high, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_close, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_volume, DOUBLE_VALUE);
         FileFlush(ExtHandle);
         cnt++;
         if(time0>=i_time+periodseconds)
           {
            i_time=time0/periodseconds;
            i_time*=periodseconds;
            d_open=Open[i];
            d_low=Low[i];
            d_high=High[i];
            d_close=Close[i];
            d_volume=last_volume;
           }
        }
       else
        {
         d_volume+=Volume[i];
         if (Low[i]d_high) d_high=High[i];
         d_close=Close[i];
        }
     } 
   FileFlush(ExtHandle);
   Print(cnt," record(s) written to ", i_period, " file");
   Comment(cnt," record(s) written to ", i_period, " file", "\n");
//---- collect incoming ticks
   int last_time=LocalTime()-5;
   while(IsStopped()==false)
     {
      int cur_time=LocalTime();
      //---- check for new rates
      if(RefreshRates())
        {
         time0=Time[0];
         FileSeek(ExtHandle,last_fpos,SEEK_SET);
         //---- is there current bar?
         if(time0d_high) d_high=High[0];
            d_close=Close[0];
           }
         else
           {
            //---- no, there is new bar
            d_volume+=Volume[1]-last_volume;
            if (Low[1]d_high) d_high=High[1];
            //---- write previous bar remains
            FileWriteInteger(ExtHandle, i_time, LONG_VALUE);
            FileWriteDouble(ExtHandle, d_open, DOUBLE_VALUE);
            FileWriteDouble(ExtHandle, d_low, DOUBLE_VALUE);
            FileWriteDouble(ExtHandle, d_high, DOUBLE_VALUE);
            FileWriteDouble(ExtHandle, d_close, DOUBLE_VALUE);
            FileWriteDouble(ExtHandle, d_volume, DOUBLE_VALUE);
            last_fpos=FileTell(ExtHandle);
            //----
            i_time=time0/periodseconds;
            i_time*=periodseconds;
            d_open=Open[0];
            d_low=Low[0];
            d_high=High[0];
            d_close=Close[0];
            d_volume=Volume[0];
            last_volume=d_volume;
           }
         //----
         FileWriteInteger(ExtHandle, i_time, LONG_VALUE);
         FileWriteDouble(ExtHandle, d_open, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_low, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_high, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_close, DOUBLE_VALUE);
         FileWriteDouble(ExtHandle, d_volume, DOUBLE_VALUE);
         FileFlush(ExtHandle);
         //----
         if(hwnd==0)
           {
            hwnd=WindowHandle(Symbol(),i_period);
            if(hwnd!=0) Print("Chart window detected");
           }
         //---- refresh window not frequently than 1 time in 2 seconds
         if(hwnd!=0 && cur_time-last_time>=2)
           {
            PostMessageA(hwnd,WM_COMMAND,33324,0);
            last_time=cur_time;
           }
        }
      Sleep(50); 
     } 
     
     }     
Comment("");
//----
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void deinit()
  {
   if(ExtHandle>=0) { FileClose(ExtHandle); ExtHandle=-1; }
  }
//+------------------------------------------------------------------+

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