Making a FITS Header

    328:    int makePrimaryArrayHdr(Hdr *, FitsDataType, int dims, int *ndim);
    329:    int makeImageExtHdr(Hdr *, FitsDataType, int dims, int *ndim, 
    330:            char *extname, int extver);

These routines make header arrays with the minimal set of FITS keywords. They return 0 is successful and -1 if an error occurred.