I think I'm missing something very basic in the File streaming API. The
snippet of code below tries to find out the size of a file and then seeks
back to the beginning of the file. FileOPen() succeeds and returns a handle.
But the FileTell() call always returns zero. I've inserted GetLastError()
calls after every file API call but the returned value is 0 (no error). I
tried changing the FileSeek call to FileSeek(fp, -1L, fileOriginEnd) with no
change in the result of the FileTell call.
openMode is fileModeReadWrite.
Any comments on where I could be wrong?
Code:
fp = FileOpen(cardNo, nameP, 0, 0, openMode, NULL);
FileSeek(fp, 0, fileOriginEnd);
FileTell(fp, &size, NULL);
FileSeek(fp, 0, fileOriginBeginning);
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