MQL4 Reference 
File functions FileWriteInteger
| int FileWriteInteger( |
int handle, int value, int size=LONG_VALUE) |
The function writes the integer value to a binary file.
If the size is SHORT_VALUE, the value will be written as a 2-byte integer (the short type),
if the size is CHAR_VALUE, the value will be written as a 1-byte integer (the char type), and
if the size is LONG_VALUE, the value will be written as a 4-byte integer (the long int type).
Returns the actually written bytes count or a negative value if an error occurs.
To get the detailed error information, one has to call the GetLastError() function.
Parameters:
| handle |
- |
File handle returned by the FileOpen() function. |
| value |
- |
Value to be written. |
| size |
- |
Optional format flag. It can be any of the following values:
CHAR_VALUE (1 byte),
SHORT_VALUE (2 bytes),
LONG_VALUE (4 bytes, default). |
Sample:
int handle;
int value=10;
handle=FileOpen("filename.dat", FILE_BIN|FILE_WRITE);
if(handle<1)
{
Print("can't open file error-",GetLastError());
return(0);
}
FileWriteInteger(handle, value, SHORT_VALUE);
//...
FileClose(handle);
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