Library /sys$common/syshlp/helplib.hlb  —  CRTL  fwrite  Arguments
 ptr

    A pointer to the memory location from which information is being
    written. The type of the object pointed to is determined by the
    type of the item being written.

 size_of_item

    The size, in bytes, of the items being written.

 number_items

    The number of items to be written.

 file_ptr

    A file pointer that indicates the file to which the items are
    being written.
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