FORMS(3) | Library Functions Manual | FORMS(3) |
field_buffer
, field_status
,
set_field_buffer
,
set_field_printf
,
set_field_status
,
set_max_field
—
#include <form.h>
char *
field_buffer
(FIELD
*field, int
buffer);
int
field_status
(FIELD
*field);
int
set_field_buffer
(FIELD
*field, int buffer,
char *value);
int
set_field_printf
(FIELD
*field, int buffer,
char *fmt,
...);
int
set_field_status
(FIELD
*field, int
status);
int
set_max_field
(FIELD
*field, int
max);
field_buffer
() function returns the contents of the
buffer number specified by buffer for the given field.
If the requested buffer number exceeds the number of buffers attached to the
field then NULL
will be returned. If the field option
O_REFORMAT
is enabled on the given field then storage
will be allocated to hold the reformatted buffer. This storage must be release
by calling free(3) when it is no
longer required. If the O_REFORMAT
field option is not
set then no extra storage is allocated. The field buffer may be set by calling
set_field_buffer
() which will set the given buffer
number to the contents of the string passed. A buffer may also be set by
calling set_field_printf
() which sets the buffer using
the format arg fmt after being expanded using the
subsequent arguments in the same manner as
sprintf(3) does. Calling
field_status
() will return the status of the first
buffer attached to the field. If the field has been modified then the function
will return TRUE
otherwise
FALSE
is returned, the status of the first buffer may
be programmatically set by calling set_field_status
().
The maximum growth of a dynamic field can be set by calling
set_max_field
() which limits the fields rows if the
field is a multiline field or the fields columns if the field only has a
single row.
NULL
if an
error is detected. The functions that return an int will return one of the
following error values:
E_OK
E_BAD_ARGUMENT
E_SYSTEM_ERROR
<form.h>
automatically includes both
<curses.h>
and
<eti.h>
. The function
set_field_printf
() is a NetBSD
extension and must not be used in portable code.
October 15, 2005 | NetBSD 9.2 |