NAME
    FWrite -- Writes a number of blocks to an output (buffered) (V36)

SYNOPSIS
    count = FWrite(fh, buf, blocklen, blocks)
    D0             D1  D2     D3        D4

    LONG FWrite(BPTR, STRPTR, ULONG, ULONG)

FUNCTION
    Attempts to write a number of blocks, each blocklen long, from the
    specified buffer to the output stream.  May return less than the
    number of blocks requested, if there is some error such as a full
    disk or r/w error.  This call is buffered.

INPUTS
    fh       - filehandle to use for buffered I/O
    buf      - Area to write bytes from.
    blocklen - number of bytes per block.  Must be > 0.
    blocks   - number of blocks to read.  Must be > 0.

RESULT
    count - Number of _blocks_ written.  On an error, the number of
            blocks actually written is returned.

BUGS
    Doesn't clear ioerr() before starting.  if you want to find out
    about errors, use SetIoErr(0L) before calling.

SEE ALSO
    fputc(), fread(), fputs()