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.

SEE ALSO

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

NOTES

       The header file <form.h> automatically includes the header file <curses.h>.

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.

                                                                                field_info(3FORM)