dynamic_fieldinfo man page on FreeBSD

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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 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).

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

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  sup‐
       ported 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)
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