| /**************************************************************************** |
| * Copyright (c) 1998 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 <juergen.pfeifer@gmx.net> 1995,1997 * |
| ****************************************************************************/ |
| |
| #include "form.priv.h" |
| |
| MODULE_ID("$Id$") |
| |
| /*--------------------------------------------------------------------------- |
| | 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 */ |