stdlib.mq5

Here I have modified the stdlib from MQL4 to MQL5 which was originally written by MetaQuotes Software Corp.

This function is changed:

MT4

//+------------------------------------------------------------------+
//| convert integer to string contained input's hexadecimal notation |
//+------------------------------------------------------------------+
string IntegerToHexString(int integer_number)
  {
   string hex_string="00000000";
   int    value,shift=28;
//---
   for(int i=0; i<8; i++)
     {
      value=(integer_number>>shift)&0x0F;
      if(value<10)
         hex_string=StringSetChar(hex_string,i,ushort(value+'0'));
      else
         hex_string=StringSetChar(hex_string,i,ushort((value-10)+'A'));
      shift-=4;
     }
//---
   return(hex_string);
  }

MT5

//+------------------------------------------------------------------+
//| convert integer to string contained input's hexadecimal notation |
//+------------------------------------------------------------------+
string IntegerToHexString(int integer_number)
  {
   string hex_string="00000000";
   int    value,shift=28;
//---
   for(int i=0; i<8; i++)
     {
      value=(integer_number>>shift)&0x0F;
      if(value<10)
         bool check=StringSetCharacter(hex_string,i,ushort(value+'0'));
      else
         bool check=StringSetCharacter(hex_string,i,ushort((value-10)+'A'));
      shift-=4;
     }
//---
   return(hex_string);
  }