GetArrayItemValue
#property copyright "Copyright ?2005-2016, MetaQuotes Software Corp."#property link "http://www.metaquotes.net/"
#import "DLLSample.dll"
int GetIntValue(int);
double GetDoubleValue(double);
string GetStringValue(string);
double GetArrayItemValue(double &arr[],int,int);
bool SetArrayItemValue(double &arr[],int,int,double);
double GetRatesItemValue(MqlRates &rates[],int,int,int);
#import
#define TIME_INDEX 0
#define OPEN_INDEX 1
#define LOW_INDEX 2
#define HIGH_INDEX 3
#define CLOSE_INDEX4
#define VOLUME_INDEX 5
//+------------------------------------------------------------------+
//| expert initialization function |
//+------------------------------------------------------------------+
int init()
{
double ret,some_value=10.5;
string sret;
int cnt;
//--- simple dll-functions call
cnt=GetIntValue(int(some_value));
Print("Returned value is ",cnt);
ret=GetDoubleValue(some_value);
Print("Returned value is ",ret);
sret=GetStringValue("some string");
Print("Returned value is ",sret);
//---
return(0);
}
//+------------------------------------------------------------------+
//| array functions call |
//+------------------------------------------------------------------+
int start()
{
double price;
double arr={1.5,2.6,3.7,4.8,5.9 };
MqlRates rates[];
//--- get first item from passed array
price=GetArrayItemValue(arr,5,0);
Print("Returned from arr ",price);
//--- change second item in the passed array
if(SetArrayItemValue(arr,5,1,1234.5)==true)
Print("Changed to ",arr);
//--- get current close
ArrayCopyRates(rates);
price=GetRatesItemValue(rates,Bars,0,CLOSE_INDEX);
Print("Returned from Close ",price);
//---
return(0);
}
//+------------------------------------------------------------------+
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