Manual pages › X Window and screen libraries (3X)

form_f_buf(3X)

set and get forms field attributes

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

NAME

form_field_buffer: set_field_buffer, field_buffer, set_field_status, field_status, set_max_field - set and get forms field attributes

SYNOPSIS

#include <form.h>

int set_field_buffer(FIELD *field, int buf, char *value);
char *field_buffer(FIELD *field, int buf);

int set_field_status(FIELD *field, int status);
int field_status(FIELD *field);
int set_max_field(FIELD *field, int max);

DESCRIPTION

set_field_buffer sets buffer buf of field to value. Buffer 0 stores the displayed contents of the field. Buffers other than 0 are application specific and not used by the forms library routines. field_buffer returns the value of field buffer buf.

Every field has an associated status flag that is set whenever the contents of field buffer 0 changes. set_field_status sets the status flag of field to status. field_status returns the status of field.

set_max_field sets a maximum growth on a dynamic field, or if max=0 turns off any maximum growth.

RETURN VALUE

field_buffer returns NULL on  error.   field_status  returns
TRUE   or  FALSE.   set_field_buffer,  set_field_status  and
set_max_field return one of the following:
E_OK           - The function returned successfully.
E_SYSTEM_ERROR - System error.
E_BAD_ARGUMENT - An argument is incorrect.

NOTES