EA to write boolean values to a file (txt or bin) and retrieve values from file
Need help in writing a code to write 8 boolean values to a text file every new bar after my conditions for buy/sell have been processed. If EA is turned off and restarted it would initialize the boolean values from the same file.
I did something like below (my functions to obtain and write values from the file) but get lots of error messages. Any guidance would be appreciated.
___________________________________________
int [] readbParameters(string filename)
{ int handle = FileOpen(filename,FILE_BIN|FILE_READ);
int bParametersR []= {0,0,0,0,0,0,0,0,0};
if(handle < 1) {
writebParameters(filename, bParametersR);
return bParametersR;
}
handle = FileOpen(filename,FILE_BIN|FILE_READ);
if(handle > 0)
{ FileReadArray(handle, bParametersR, 0, 9); // reading parameter values
FileClose(handle);
}
else {Print("readbParameter - Parameters file not found."); return(false);}
return bParametersR;
}
bool writebParameters(string filename, int bParametersW[])
{ int handle = FileOpen(filename,FILE_BIN|FILE_WRITE);
if(handle > 0)
{ FileWriteArray(handle, bParametersW, 0, 9); // writing parameter boolean - 1 = true; 0 = false
FileClose(handle);
}
else {Print("writebParameter - parameter file not found."); return(false);}
return(true);
}
kanash
#define SIZE 10 static int Buffer[SIZE]; m_file = " some name for the file "; //+------------------------------------------------------------------+ //| Constructor for signal. | //| INPUT: no. | //| OUTPUT: no. | //| REMARK: no. | //+------------------------------------------------------------------+ void CSignal::CSignal() { //--- setting default values... //--- initializing of weights buffer int handle = FileOpen(m_file+".dat",FILE_READ|FILE_BIN|FILE_ANSI); if(handle!=INVALID_HANDLE) { FileReadArray(handle,Buffer,0,WHOLE_ARRAY); FileClose(handle); } //--- You can omit this if you do not need it... if(FileSize(handle)<=0||handle==INVALID_HANDLE) { for(int j=0; j<SIZE; j++) { Buffer[j] = MathRand()%2; } } } //+------------------------------------------------------------------+ //| Destructor for signal. | //| INPUT: no. | //| OUTPUT: no. | //| REMARK: no. | //+------------------------------------------------------------------+ void CSignal::~CSignal() { //--- any deinitiallizing source you may have int handle = FileOpen(m_file+".dat",FILE_WRITE|FILE_BIN|FILE_ANSI); if(handle!=INVALID_HANDLE) { FileWriteArray(handle,Buffer,0,WHOLE_ARRAY); FileClose(handle); } if(handle==INVALID_HANDLE) { printf(__FUNCTION__+": error writing to file"); } }
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Need help in writing a code to write 8 boolean values to a text file every new bar after my conditions for buy/sell have been processed. If EA is turned off and restarted it would initialize the boolean values from the same file.
I did something like below (my functions to obtain and write values from the file) but get lots of error messages. Any guidance would be appreciated.
___________________________________________
int [] readbParameters(string filename)
{ int handle = FileOpen(filename,FILE_BIN|FILE_READ);
int bParametersR []= {0,0,0,0,0,0,0,0,0};
if(handle < 1) {
writebParameters(filename, bParametersR);
return bParametersR;
}
handle = FileOpen(filename,FILE_BIN|FILE_READ);
if(handle > 0)
{ FileReadArray(handle, bParametersR, 0, 9); // reading parameter values
FileClose(handle);
}
else {Print("readbParameter - Parameters file not found."); return(false);}
return bParametersR;
}
bool writebParameters(string filename, int bParametersW[])
{ int handle = FileOpen(filename,FILE_BIN|FILE_WRITE);
if(handle > 0)
{ FileWriteArray(handle, bParametersW, 0, 9); // writing parameter boolean - 1 = true; 0 = false
FileClose(handle);
}
else {Print("writebParameter - parameter file not found."); return(false);}
return(true);
}
kanash