Reading Writing to External File
Added the line to find the External File Name and even more errors
Can anyone help de-bug these.
//+------------------------------------------------------------------+ //| | //| | //| | //+------------------------------------------------------------------+ #property copyright "" #property link "" #property indicator_separate_window #property indicator_buffers 1 #property indicator_minimum 0.0 #property indicator_maximum 0.1 /*--------------------------------------------------------------------- Declaration of Properties ----------------------------------------------------------------------- */ //Line 20 int A, B, C, D, E; //Variable declaration in External File int Handle // int Stl;, //Style of Vertical Line //string Str="some string"; string File_Name=("Book1.xlsx"); //External File Name //line 30 { int Handle //Handle=FileOpen(File_Name,FILE_CSV|FILE_READ,";"); Handle=FileOpen(File_Name,FILE_BIN,FILE_READ,FILE_WRITE,";"); // File opening //string Object="Obj_Name";, //Name of Object //Instr //Name of Currency //string One,Two //1st & 2nd name of Instr. //string Text, //Text of event description //Str_DtTm; //Start of Date and Time (Line) } datetime Dat_DtTm; //Date and Time of event //Color Col; //Colour of Vertical Line //+------------------------------------------------------------------+ //| expert initialization function | //+------------------------------------------------------------------+ int init() Handle=FileOpen (File_Name,FILE_CSV|FILE_READ|FILE_WRITE,";"); //Opening File if (Handle<0) //Fail of opening File { if (GetLastError()==4130 //If cannot find File Alert ("No File Found", File_Name); // Inform User else //In case of other error Alert ("Error in Finding File",File_Name); //Inform User of error PlaySound ("Bzzzr.wav"); //Play Alert Sound return(); //Exit Start () } //-----------------------------------------------------------------------If File cannot be found Error return //-------------------------------------------------------------------- //====================================================================================Deletes Global variables //+------------------------------------------------------------------+ //| expert deinitialization function | //+------------------------------------------------------------------+ int deinit() { //---- //---- return(0); } //---- ERRORS 'Handle' - variable not defined \External File Open read write.mq4 (53, 1) 'File_Name' - expression on global scope not allowed \External File Open read write.mq4 (53, 18) 'File_Name' - variable not defined \External File Open read write.mq4 (53, 18) 'Handle' - expression on global scope not allowed \External File Open read write.mq4 (54, 5) 'Handle' - variable not defined \External File Open read write.mq4 (54, 5) 'File_Name' - variable not defined \External File Open read write.mq4 (57, 46) 'File_Name' - variable not defined \External File Open read write.mq4 (59, 55) 10 error(s), 5 warning(s)
Please edit your first post, use SRC for the code (like you did in the second.)
';' - variable expectedNo token between comma and semicolon. '{' - comma or semicolon expected
No semicolon. | int A, B, C, D, E, ; //Variable declaration in External File int Handle |
'Handle' - comma or semicolon expectedStart of function definition [int init()] but no braces. | int init() Handle=FileOpen (File_Name,FILE_CSV|FILE_READ|FILE_WRITE,";"); //Opening File |
| Code outside of function. | //line 30
{
|
I have managed to re-organise the code and de-bug to one error message which reads
Compiling 'FILE READ.mq4'...
'(' - function definition unexpected C:\Users\P\Documents\mql4\Draft Indicator Folder\FILE READ.mq4 (55, 11)
1 error(s), 0 warning(s)
Can someone help to get rid of all errors?
//+------------------------------------------------------------------+ //| | //| | //| | //+------------------------------------------------------------------+ #property copyright "" #property link "" #property indicator_separate_window #property indicator_buffers 1 #property indicator_minimum 0.0 #property indicator_maximum 0.1 //int File_Name /*--------------------------------------------------------------------- Declaration of Properties ----------------------------------------------------------------------- */ int init() { return (0); } //Line 20 int start() { ;int NewsDateTime, Currency, Description, EventAlert, EventValue, WriteResult; //Variable declaration in External File int Handle, //nbre=0;//,sens=2,ticket=3333; File_Name="Book1", sens=2, ticket=3333; Handle=FileOpen(File_Name,FILE_BIN,FILE_READ,FILE_WRITE,";"); // File opening if(Handle<0) //File Opening fails { if (GetLastError()==4130 //If cannot find File Alert ("No File Found", File_Name); // Inform User else //In case of other error Alert ("Error in Finding File",File_Name); //Inform User of error PlaySound ("Bzzzr.wav"); //Play Alert Sound datetime Dat_DtTm; //Date and Time of event return(0); //Exit Start () } //+------------------------------------------------------------------+ //| expert deinitialization function | //+------------------------------------------------------------------+ int deinit() { //---- //---- return(0); } //+--------
I have tried balancing the opening and closing parentheses yet there is still one erro message.
Can someone pls help with this code to get rid off all error messages?
ProPap:
I have managed to re-organise the code and de-bug to one error message which reads
Compiling 'FILE READ.mq4'...
'(' - function definition unexpected C:\Users\P\Documents\mql4\Draft Indicator Folder\FILE READ.mq4 (55, 11)
1 error(s), 0 warning(s)
Can someone help to get rid of all errors?
I have tried balancing the opening and closing parentheses yet there is still one erro message.
Can someone pls help with this code to get rid off all error messages?
Why the semi colon at the start of the line ?
; int NewsDateTime, Currency, Description, EventAlert, EventValue, WriteResult; //Variable declaration in External File
File_Name is supposed to a string, you have made it an int . .
int Handle, //nbre=0;//,sens=2,ticket=3333; // no semi colon at the end of this line, you commented it out . . . File_Name = "Book1", sens=2, ticket=3333; // so File_Name is an int
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Can anyone pls advise
I am trying to run this basic short MQL program to read/write to external file and have reduced errors but can't get further.
Can anyone help in debugging this?
//+------------------------------------------------------------------+ //| | //| | //| | //+------------------------------------------------------------------+ #property copyright "" #property link "" #property indicator_separate_window #property indicator_buffers 1 #property indicator_minimum 0.0 #property indicator_maximum 0.1 /*--------------------------------------------------------------------- Declaration of Properties ----------------------------------------------------------------------- */ //Line 20 int A, B, C, D, E, ; //Variable declaration in External File int Handle // int Stl;, //Style of Vertical Line //string Str="some string"; { int Handle //Handle=FileOpen(File_Name,FILE_CSV|FILE_READ,";"); Handle=FileOpen(File_Name,FILE_BIN,FILE_READ,FILE_WRITE,";"); // File opening //string Object="Obj_Name";, //Name of Object //Instr //Name of Currency //string One,Two //1st & 2nd name of Instr. //string Text, //Text of event description //Str_DtTm; //Start of Date and Time (Line) } datetime Dat_DtTm; //Date and Time of event //Color Col; //Colour of Vertical Line //+------------------------------------------------------------------+ //| expert initialization function | //+------------------------------------------------------------------+ int init() Handle=FileOpen (File_Name,FILE_CSV|FILE_READ|FILE_WRITE,";"); //Opening File if (Handle<0) //Fail of opening File { if (GetLastError()==4130 //If cannot find File Alert ("No File Found", File_Name); // Inform User else //In case of other error Alert ("Error in Finding File",File_Name); //Inform User of error PlaySound ("Bzzzr.wav"); //Play Alert Sound return(); //Exit Start () } //-----------------------------------------------------------------------If File cannot be found Error return //-------------------------------------------------------------------- //====================================================================================Deletes Global variables //+------------------------------------------------------------------+ //| expert deinitialization function | //+------------------------------------------------------------------+ int deinit() { //---- //---- return(0); } //---- ERRORS Compiling 'External File Open read write.mq4'... ';' - variable expected \External File Open read write.mq4 (23, 24) '{' - comma or semicolon expected \External File Open read write.mq4 (30, 4) 'Handle' - comma or semicolon expected \External File Open read write.mq4 (34, 5) 'File_Name' - expression on global scope not allowed \External File Open read write.mq4 (34, 21) 'File_Name' - variable not defined \External File Open read write.mq4 (34, 21) '}' - unbalanced parentheses \External File Open read write.mq4 (40, 5) 5 error(s), 1 warning(s)