MQL4 Reference 
File functions FileTell
| int FileTell( |
int handle) |
Returns the current position of the file pointer.
To get the detailed error information, one has to call GetLastError() function.
Parameters:
| handle |
- |
File handle returned by the FileOpen() function. |
Sample:
int handle;
int pos;
handle=FileOpen("my_table.dat", FILE_BIN|FILE_READ);
// reading some data
pos=FileTell(handle);
Print("current position is ", pos);
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