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/* $OpenBSD: fld_arg.c,v 1.1 1997/12/03 05:39:50 millert Exp $ */
/*-----------------------------------------------------------------------------+
| The ncurses form library is Copyright (C) 1995-1997 |
| by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> |
| All Rights Reserved. |
| |
| Permission to use, copy, modify, and distribute this software and its |
| documentation for any purpose and without fee is hereby granted, provided |
| that the above copyright notice appear in all copies and that both that |
| copyright notice and this permission notice appear in supporting |
| documentation, and that the name of the above listed copyright holder(s) not |
| be used in advertising or publicity pertaining to distribution of the |
| software without specific, written prior permission. |
| |
| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO |
| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- |
| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR |
| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- |
| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH |
| THE USE OR PERFORMANCE OF THIS SOFTWARE. |
+-----------------------------------------------------------------------------*/
#include "form.priv.h"
MODULE_ID("Id: fld_arg.c,v 1.1 1997/10/21 13:24:19 juergen Exp $")
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : int set_fieldtype_arg(
| FIELDTYPE *typ,
| void * (* const make_arg)(va_list *),
| void * (* const copy_arg)(const void *),
| void (* const free_arg)(void *) )
|
| Description : Connects to the type additional arguments necessary
| for a set_field_type call. The various function pointer
| arguments are:
| make_arg : allocates a structure for the field
| specific parameters.
| copy_arg : duplicate the structure created by
| make_arg
| free_arg : Release the memory allocated by make_arg
| or copy_arg
|
| At least make_arg must be non-NULL.
| You may pass NULL for copy_arg and free_arg if your
| make_arg function doesn't allocate memory and your
| arg fits into the storage for a (void*).
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid argument
+--------------------------------------------------------------------------*/
int set_fieldtype_arg(FIELDTYPE * typ,
void * (* const make_arg)(va_list *),
void * (* const copy_arg)(const void *),
void (* const free_arg)(void *))
{
if ( !typ || !make_arg )
RETURN(E_BAD_ARGUMENT);
typ->status |= _HAS_ARGS;
typ->makearg = make_arg;
typ->copyarg = copy_arg;
typ->freearg = free_arg;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : void *field_arg(const FIELD *field)
|
| Description : Retrieve pointer to the fields argument structure.
|
| Return Values : Pointer to structure or NULL if none is defined.
+--------------------------------------------------------------------------*/
void *field_arg(const FIELD * field)
{
return Normalize_Field(field)->arg;
}
/* fld_arg.c ends here */
|
