write_lanfile

Source: hsio/write_lanfile.pro

 WRITE_LANFILE 
        Write data to a file.

 Usage:
        write_lanfile, findex, data, nwrite, nact, nfile

 Arguments:
        findex  Long    input   Index of file, as returned by open_lanfile
        data    Byte    input   Array with data.
        nwrite  Long    input   Number of bytes to write from "data"
        nact    Long    output  Number of bytes written from "data"
        nfile   Long    output  Number of bytes written to file (<0 if error)

 History:
        IDL version (after C code): 25/11/03; SJT