form_field_info 3x

form_field_info(3x)                                 form_field_info(3x)

NAME

       form_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 cor-
       ner, 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).

       E_BAD_ARGUMENT
            Routine  detected  an incorrect or out-of-range argu-
            ment.

SEE ALSO

       curses(3x) 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.



                                                    form_field_info(3x)