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stdlib
//+------------------------------------------------------------------+
//| stdlib.mq4 |
//| Copyright © 2004, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net/"
#property library
/*
int init()
{
Print("Init function defined as feature sample");
}
int deinit()
{
Print("Deinit function defined as feature sample too");
}
*/
//+------------------------------------------------------------------+
//| return error description |
//+------------------------------------------------------------------+
string ErrorDescription(int error_code)
{
string error_string;
//----
switch(error_code)
{
//---- codes returned from trade server
case 0:
case 1: error_string="no error"; break;
case 2: error_string="common error"; break;
case 3: error_string="invalid trade parameters"; break;
case 4: error_string="trade server is busy"; break;
case 5: error_string="old version of the client terminal"; break;
case 6: error_string="no connection with trade server"; break;
case 7: error_string="not enough rights"; break;
case 8: error_string="too frequent requests"; break;
case 9: error_string="malfunctional trade operation"; break;
case 64: error_string="account disabled"; break;
case 65: error_string="invalid account"; break;
case 128: error_string="trade timeout"; break;
case 129: error_string="invalid price"; break;
case 130: error_string="invalid stops"; break;
case 131: error_string="invalid trade volume"; break;
case 132: error_string="market is closed"; break;
case 133: error_string="trade is disabled"; break;
case 134: error_string="not enough money"; break;
case 135: error_string="price changed"; break;
case 136: error_string="off quotes"; break;
case 137: error_string="broker is busy"; break;
case 138: error_string="requote"; break;
case 139: error_string="order is locked"; break;
case 140: error_string="long positions only allowed"; break;
case 141: error_string="too many requests"; break;
case 145: error_string="modification denied because order too close to market"; break;
case 146: error_string="trade context is busy"; break;
//---- mql4 errors
case 4000: error_string="no error"; break;
case 4001: error_string="wrong function pointer"; break;
case 4002: error_string="array index is out of range"; break;
case 4003: error_string="no memory for function call stack"; break;
case 4004: error_string="recursive stack overflow"; break;
case 4005: error_string="not enough stack for parameter"; break;
case 4006: error_string="no memory for parameter string"; break;
case 4007: error_string="no memory for temp string"; break;
case 4008: error_string="not initialized string"; break;
case 4009: error_string="not initialized string in array"; break;
case 4010: error_string="no memory for array\' string"; break;
case 4011: error_string="too long string"; break;
case 4012: error_string="remainder from zero divide"; break;
case 4013: error_string="zero divide"; break;
case 4014: error_string="unknown command"; break;
case 4015: error_string="wrong jump (never generated error)"; break;
case 4016: error_string="not initialized array"; break;
case 4017: error_string="dll calls are not allowed"; break;
case 4018: error_string="cannot load library"; break;
case 4019: error_string="cannot call function"; break;
case 4020: error_string="expert function calls are not allowed"; break;
case 4021: error_string="not enough memory for temp string returned from function"; break;
case 4022: error_string="system is busy (never generated error)"; break;
case 4050: error_string="invalid function parameters count"; break;
case 4051: error_string="invalid function parameter value"; break;
case 4052: error_string="string function internal error"; break;
case 4053: error_string="some array error"; break;
case 4054: error_string="incorrect series array using"; break;
case 4055: error_string="custom indicator error"; break;
case 4056: error_string="arrays are incompatible"; break;
case 4057: error_string="global variables processing error"; break;
case 4058: error_string="global variable not found"; break;
case 4059: error_string="function is not allowed in testing mode"; break;
case 4060: error_string="function is not confirmed"; break;
case 4061: error_string="send mail error"; break;
case 4062: error_string="string parameter expected"; break;
case 4063: error_string="integer parameter expected"; break;
case 4064: error_string="double parameter expected"; break;
case 4065: error_string="array as parameter expected"; break;
case 4066: error_string="requested history data in update state"; break;
case 4099: error_string="end of file"; break;
case 4100: error_string="some file error"; break;
case 4101: error_string="wrong file name"; break;
case 4102: error_string="too many opened files"; break;
case 4103: error_string="cannot open file"; break;
case 4104: error_string="incompatible access to a file"; break;
case 4105: error_string="no order selected"; break;
case 4106: error_string="unknown symbol"; break;
case 4107: error_string="invalid price parameter for trade function"; break;
case 4108: error_string="invalid ticket"; break;
case 4109: error_string="trade is not allowed"; break;
case 4110: error_string="longs are not allowed"; break;
case 4111: error_string="shorts are not allowed"; break;
case 4200: error_string="object is already exist"; break;
case 4201: error_string="unknown object property"; break;
case 4202: error_string="object is not exist"; break;
case 4203: error_string="unknown object type"; break;
case 4204: error_string="no object name"; break;
case 4205: error_string="object coordinates error"; break;
case 4206: error_string="no specified subwindow"; break;
default: error_string="unknown error";
}
//----
return(error_string);
}
//+------------------------------------------------------------------+
//| convert red, green and blue values to color |
//+------------------------------------------------------------------+
int RGB(int red_value,int green_value,int blue_value)
{
//---- check parameters
if(red_value<0) red_value=0;
if(red_value>255) red_value=255;
if(green_value<0) green_value=0;
if(green_value>255) green_value=255;
if(blue_value<0) blue_value=0;
if(blue_value>255) blue_value=255;
//----
green_value<<=8;
blue_value<<=16;
return(red_value+green_value+blue_value);
}
//+------------------------------------------------------------------+
//| right comparison of 2 doubles |
//+------------------------------------------------------------------+
bool CompareDoubles(double number1,double number2)
{
if(NormalizeDouble(number1-number2,8)==0) return(true);
else return(false);
}
//+------------------------------------------------------------------+
//| up to 16 digits after decimal point |
//+------------------------------------------------------------------+
string DoubleToStrMorePrecision(double number,int precision)
{
double rem,integer,integer2;
double DecimalArray[17]={ 1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, 10000000.0, 100000000.0,
1000000000.0, 10000000000.0, 100000000000.0, 10000000000000.0, 100000000000000.0,
1000000000000000.0, 1000000000000000.0, 10000000000000000.0 };
string intstring,remstring,retstring;
bool isnegative=false;
int rem2;
//----
if(precision<0) precision=0;
if(precision>16) precision=16;
//----
double p=DecimalArray[precision];
if(number<0.0) { isnegative=true; number=-number; }
integer=MathFloor(number);
rem=MathRound((number-integer)*p);
remstring="";
for(int i=0; i<precision; i++)
{
integer2=MathFloor(rem/10);
rem2=NormalizeDouble(rem-integer2*10,0);
remstring=rem2+remstring;
rem=integer2;
}
//----
intstring=DoubleToStr(integer,0);
if(isnegative) retstring="-"+intstring;
else retstring=intstring;
if(precision>0) retstring=retstring+"."+remstring;
return(retstring);
}
//+------------------------------------------------------------------+
//| convert integer to string contained input's hexadecimal notation |
//+------------------------------------------------------------------+
string IntegerToHexString(int integer_number)
{
string hex_string="00000000";
int value, shift=28;
// Print("Parameter for IntegerHexToString is ",integer_number);
//----
for(int i=0; i<8; i++)
{
value=(integer_number>>shift)&0x0F;
if(value<10) hex_string=StringSetChar(hex_string, i, value+'0');
else hex_string=StringSetChar(hex_string, i, (value-10)+'A');
shift-=4;
}
//----
return(hex_string);
}
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