CNC_RDMGRPDATA | NCDATA

Specify the library handle. See "Library handle" for details.

Specify starting number from which the data is read. Valid range is from 0 to 499.

Pointer to the number of data to be read. Specify the number of data to be read before function call and actual number of data being read is stored after the function call. Valid range is from 1 to 500.

Pointer to the ODBMGRP structure where returned data are stored. The ODBMGRP structure is as follows.

typedef struct odbmgrp {
    long    m_code;
    short   grp_no;
    char    m_name[21];
    char    dummy;
} ODBMGRP;

m_code

M code
M code is returned.
* In case of Series 16/18 and 16i/18i, -1 is returned when no M code is assigned to the number.

grp_no

M code group number
M code group number is returned.

m_name

M code name
M code name is returned.
ASCII character string (maximum 20 characters) with trailing NULL code is stored.
* Not used in case of Series 16/18 and 16i/18i.