field_info man page on FreeBSD

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form_field_info(3X)					   form_field_info(3X)

       form_field_info - retrieve field characteristics

       #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

       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.

       These routines return one of the following:

       E_OK The routine succeeded.

	    System error occurred (see errno).

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

       curses(3X) and related pages whose names	 begin	"form_"	 for  detailed
       descriptions of the entry points.

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

       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.

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


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