NAME

       dynamic_field_info, field_info - retrieve field characteristics

SYNOPSIS

       #include <form.h>

       int field_info(const FIELD *field,
                      int *rows, int *cols,
                      int *frow, int *fcol,
                      int *nrow, int *nbuf);

       int dynamic_field_info(const FIELD *field,
                              int *rows, int *cols, int *max);

DESCRIPTION

       The  function  field_info  returns  the sizes and other attributes passed in to the field at its creation
       time.  The attributes are: height, width, row of upper-left corner, column of upper-left  corner,  number
       off-screen rows, and number of working buffers.

       The  function dynamic_field_info returns the actual size of the field, and its maximum possible size.  If
       the field has no size limit, the location addressed by the third argument will be set to 0.  A field  can
       be made dynamic by turning off the O_STATIC option with field_opts_off.

RETURN VALUE

       These routines return one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
            System error occurred (see errno(3)).

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

PORTABILITY

       These routines emulate the System V forms library.  They were not supported on Version 7 or BSD versions.

       A  null  (zero  pointer)  is  accepted  for  any  of  the  return  values, to ignore that value.  Not all
       implementations allow this, e.g., Solaris 2.7 does not.

AUTHORS

       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.

SEE ALSO

       ncurses(3NCURSES) and related pages whose names begin “form_” for  detailed  descriptions  of  the  entry
       points.

ncurses 6.4                                        2023-11-25                                  field_info(3FORM)