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+/****************************************************************************
+ * 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: fld_arg.c,v 1.4 1999/05/16 17:16:04 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 */