/**************************************************************************** * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Juergen Pfeifer, 1995,1997 * ****************************************************************************/ #include "form.priv.h" MODULE_ID("$Id: fld_arg.c,v 1.11 2004/12/25 22:20:18 tom 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 +--------------------------------------------------------------------------*/ NCURSES_EXPORT(int) set_fieldtype_arg(FIELDTYPE *typ, void *(*const make_arg)(va_list *), void *(*const copy_arg)(const void *), void (*const free_arg) (void *)) { T((T_CALLED("set_fieldtype_arg(%p,%p,%p,%p)"), typ, make_arg, copy_arg, free_arg)); if (typ != 0 && make_arg != (void *)0) { typ->status |= _HAS_ARGS; typ->makearg = make_arg; typ->copyarg = copy_arg; typ->freearg = free_arg; RETURN(E_OK); } RETURN(E_BAD_ARGUMENT); } /*--------------------------------------------------------------------------- | 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. +--------------------------------------------------------------------------*/ NCURSES_EXPORT(void *) field_arg(const FIELD *field) { T((T_CALLED("field_arg(%p)"), field)); returnVoidPtr(Normalize_Field(field)->arg); } /* fld_arg.c ends here */