diff CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/ncursesw/form.h @ 69:33d812a61356

planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/ncursesw/form.h	Tue Mar 18 17:55:14 2025 -0400
@@ -0,0 +1,460 @@
+/****************************************************************************
+ * Copyright 2018-2019-2020,2021 Thomas E. Dickey                           *
+ * Copyright 1998-2016,2017 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                                    *
+ ****************************************************************************/
+
+/* $Id: form.h,v 0.32 2021/06/17 21:26:02 tom Exp $ */
+
+#ifndef FORM_H
+#define FORM_H
+/* *INDENT-OFF*/
+
+#include <ncursesw/curses.h>
+#include <ncursesw/eti.h>
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+#if defined(BUILDING_FORM)
+# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT
+#else
+# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT
+#endif
+
+#define FORM_WRAPPED_VAR(type,name) extern FORM_IMPEXP type NCURSES_PUBLIC_VAR(name)(void)
+
+#define FORM_EXPORT(type) FORM_IMPEXP type NCURSES_API
+#define FORM_EXPORT_VAR(type) FORM_IMPEXP type
+
+#ifndef FORM_PRIV_H
+typedef void *FIELD_CELL;
+#endif
+
+#ifndef NCURSES_FIELD_INTERNALS
+#define NCURSES_FIELD_INTERNALS /* nothing */
+#endif
+
+typedef int Form_Options;
+typedef int Field_Options;
+
+	/**********
+	*  _PAGE  *
+	**********/
+
+typedef struct pagenode
+#if !NCURSES_OPAQUE_FORM
+{
+  short pmin;		/* index of first field on page			*/
+  short pmax;		/* index of last field on page			*/
+  short smin;		/* index of top leftmost field on page		*/
+  short smax;		/* index of bottom rightmost field on page	*/
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+_PAGE;
+
+	/**********
+	*  FIELD  *
+	**********/
+
+typedef struct fieldnode
+#if 1			/* not yet: !NCURSES_OPAQUE_FORM */
+{
+  unsigned short	status;		/* flags			*/
+  short			rows;		/* size in rows			*/
+  short			cols;		/* size in cols			*/
+  short			frow;		/* first row			*/
+  short			fcol;		/* first col			*/
+  int			drows;		/* dynamic rows			*/
+  int			dcols;		/* dynamic cols			*/
+  int			maxgrow;	/* maximum field growth		*/
+  int			nrow;		/* off-screen rows		*/
+  short			nbuf;		/* additional buffers		*/
+  short			just;		/* justification		*/
+  short			page;		/* page on form			*/
+  short			index;		/* into form -> field		*/
+  int			pad;		/* pad character		*/
+  chtype		fore;		/* foreground attribute		*/
+  chtype		back;		/* background attribute		*/
+  Field_Options		opts;		/* options			*/
+  struct fieldnode *	snext;		/* sorted order pointer		*/
+  struct fieldnode *	sprev;		/* sorted order pointer		*/
+  struct fieldnode *	link;		/* linked field chain		*/
+  struct formnode *	form;		/* containing form		*/
+  struct typenode *	type;		/* field type			*/
+  void *		arg;		/* argument for type		*/
+  FIELD_CELL *		buf;		/* field buffers		*/
+  void *		usrptr;		/* user pointer			*/
+  /*
+   * The wide-character configuration requires extra information.  Because
+   * there are existing applications that manipulate the members of FIELD
+   * directly, we cannot make the struct opaque, except by changing the ABI.
+   * Offsets of members up to this point are the same in the narrow- and
+   * wide-character configuration.  But note that the type of buf depends on
+   * the configuration, and is made opaque for that reason.
+   */
+  NCURSES_FIELD_INTERNALS
+}
+#endif /* NCURSES_OPAQUE_FORM */
+FIELD;
+
+
+	/*********
+	*  FORM  *
+	*********/
+
+typedef struct formnode
+#if 1			/* not yet: !NCURSES_OPAQUE_FORM */
+{
+  unsigned short	status;	  	/* flags			*/
+  short			rows;		/* size in rows			*/
+  short			cols;		/* size in cols			*/
+  int			currow;		/* current row in field window	*/
+  int			curcol;		/* current col in field window	*/
+  int			toprow;		/* in scrollable field window	*/
+  int			begincol;	/* in horiz. scrollable field	*/
+  short			maxfield;	/* number of fields		*/
+  short			maxpage;	/* number of pages		*/
+  short			curpage;	/* index into page		*/
+  Form_Options		opts;		/* options			*/
+  WINDOW *		win;		/* window			*/
+  WINDOW *		sub;		/* subwindow			*/
+  WINDOW *		w;		/* window for current field	*/
+  FIELD **		field;		/* field [maxfield]		*/
+  FIELD *		current;	/* current field		*/
+  _PAGE *		page;		/* page [maxpage]		*/
+  void *		usrptr;		/* user pointer			*/
+
+  void			(*forminit)(struct formnode *);
+  void			(*formterm)(struct formnode *);
+  void			(*fieldinit)(struct formnode *);
+  void			(*fieldterm)(struct formnode *);
+
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+FORM;
+
+
+	/**************
+	*  FIELDTYPE  *
+	**************/
+
+typedef struct typenode
+#if !NCURSES_OPAQUE_FORM
+{
+  unsigned short	status;			/* flags		    */
+  long			ref;			/* reference count	    */
+  struct typenode *	left;			/* ptr to operand for |     */
+  struct typenode *	right;			/* ptr to operand for |     */
+
+  void* (*makearg)(va_list *);			/* make fieldtype arg	    */
+  void* (*copyarg)(const void *);		/* copy fieldtype arg 	    */
+  void	(*freearg)(void *);			/* free fieldtype arg	    */
+
+#if NCURSES_INTEROP_FUNCS
+  union {
+    bool (*ofcheck)(FIELD *,const void *);	/* field validation	    */
+    bool (*gfcheck)(FORM*,FIELD *,const void*);	/* generic field validation */
+  } fieldcheck;
+  union {
+    bool (*occheck)(int,const void *);		/* character validation     */
+    bool (*gccheck)(int,FORM*,
+		    FIELD*,const void*);        /* generic char validation  */
+  } charcheck;
+  union {
+    bool (*onext)(FIELD *,const void *);        /* enumerate next value     */
+    bool (*gnext)(FORM*,FIELD*,const void*);    /* generic enumerate next   */
+  } enum_next;
+  union {
+    bool (*oprev)(FIELD *,const void *);	/* enumerate prev value     */
+    bool (*gprev)(FORM*,FIELD*,const void*);    /* generic enumerate prev   */
+  } enum_prev;
+  void* (*genericarg)(void*);                   /* Alternate Arg method     */
+#else
+  bool	(*fcheck)(FIELD *,const void *);	/* field validation	*/
+  bool	(*ccheck)(int,const void *);		/* character validation */
+
+  bool	(*next)(FIELD *,const void *);		/* enumerate next value */
+  bool	(*prev)(FIELD *,const void *);		/* enumerate prev value */
+#endif
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+FIELDTYPE;
+
+typedef void (*Form_Hook)(FORM *);
+
+	/***************************
+	*  miscellaneous #defines  *
+	***************************/
+
+/* field justification */
+#define NO_JUSTIFICATION	(0)
+#define JUSTIFY_LEFT		(1)
+#define JUSTIFY_CENTER		(2)
+#define JUSTIFY_RIGHT		(3)
+
+/* field options */
+#define O_VISIBLE		(0x0001U)
+#define O_ACTIVE		(0x0002U)
+#define O_PUBLIC		(0x0004U)
+#define O_EDIT			(0x0008U)
+#define O_WRAP			(0x0010U)
+#define O_BLANK			(0x0020U)
+#define O_AUTOSKIP		(0x0040U)
+#define O_NULLOK		(0x0080U)
+#define O_PASSOK		(0x0100U)
+#define O_STATIC		(0x0200U)
+#define O_DYNAMIC_JUSTIFY	(0x0400U)	/* ncurses extension	*/
+#define O_NO_LEFT_STRIP		(0x0800U)	/* ncurses extension	*/
+#define O_EDGE_INSERT_STAY      (0x1000U)	/* ncurses extension	*/
+#define O_INPUT_LIMIT           (0x2000U)	/* ncurses extension	*/
+
+/* form options */
+#define O_NL_OVERLOAD		(0x0001U)
+#define O_BS_OVERLOAD		(0x0002U)
+
+/* form driver commands */
+#define REQ_NEXT_PAGE	 (KEY_MAX + 1)	/* move to next page		*/
+#define REQ_PREV_PAGE	 (KEY_MAX + 2)	/* move to previous page	*/
+#define REQ_FIRST_PAGE	 (KEY_MAX + 3)	/* move to first page		*/
+#define REQ_LAST_PAGE	 (KEY_MAX + 4)	/* move to last page		*/
+
+#define REQ_NEXT_FIELD	 (KEY_MAX + 5)	/* move to next field		*/
+#define REQ_PREV_FIELD	 (KEY_MAX + 6)	/* move to previous field	*/
+#define REQ_FIRST_FIELD	 (KEY_MAX + 7)	/* move to first field		*/
+#define REQ_LAST_FIELD	 (KEY_MAX + 8)	/* move to last field		*/
+#define REQ_SNEXT_FIELD	 (KEY_MAX + 9)	/* move to sorted next field	*/
+#define REQ_SPREV_FIELD	 (KEY_MAX + 10)	/* move to sorted prev field	*/
+#define REQ_SFIRST_FIELD (KEY_MAX + 11)	/* move to sorted first field	*/
+#define REQ_SLAST_FIELD	 (KEY_MAX + 12)	/* move to sorted last field	*/
+#define REQ_LEFT_FIELD	 (KEY_MAX + 13)	/* move to left to field	*/
+#define REQ_RIGHT_FIELD	 (KEY_MAX + 14)	/* move to right to field	*/
+#define REQ_UP_FIELD	 (KEY_MAX + 15)	/* move to up to field		*/
+#define REQ_DOWN_FIELD	 (KEY_MAX + 16)	/* move to down to field	*/
+
+#define REQ_NEXT_CHAR	 (KEY_MAX + 17)	/* move to next char in field	*/
+#define REQ_PREV_CHAR	 (KEY_MAX + 18)	/* move to prev char in field	*/
+#define REQ_NEXT_LINE	 (KEY_MAX + 19)	/* move to next line in field	*/
+#define REQ_PREV_LINE	 (KEY_MAX + 20)	/* move to prev line in field	*/
+#define REQ_NEXT_WORD	 (KEY_MAX + 21)	/* move to next word in field	*/
+#define REQ_PREV_WORD	 (KEY_MAX + 22)	/* move to prev word in field	*/
+#define REQ_BEG_FIELD	 (KEY_MAX + 23)	/* move to first char in field	*/
+#define REQ_END_FIELD	 (KEY_MAX + 24)	/* move after last char in fld	*/
+#define REQ_BEG_LINE	 (KEY_MAX + 25)	/* move to beginning of line	*/
+#define REQ_END_LINE	 (KEY_MAX + 26)	/* move after last char in line	*/
+#define REQ_LEFT_CHAR	 (KEY_MAX + 27)	/* move left in field		*/
+#define REQ_RIGHT_CHAR	 (KEY_MAX + 28)	/* move right in field		*/
+#define REQ_UP_CHAR	 (KEY_MAX + 29)	/* move up in field		*/
+#define REQ_DOWN_CHAR	 (KEY_MAX + 30)	/* move down in field		*/
+
+#define REQ_NEW_LINE	 (KEY_MAX + 31)	/* insert/overlay new line	*/
+#define REQ_INS_CHAR	 (KEY_MAX + 32)	/* insert blank char at cursor	*/
+#define REQ_INS_LINE	 (KEY_MAX + 33)	/* insert blank line at cursor	*/
+#define REQ_DEL_CHAR	 (KEY_MAX + 34)	/* delete char at cursor	*/
+#define REQ_DEL_PREV	 (KEY_MAX + 35)	/* delete char before cursor	*/
+#define REQ_DEL_LINE	 (KEY_MAX + 36)	/* delete line at cursor	*/
+#define REQ_DEL_WORD	 (KEY_MAX + 37)	/* delete word at cursor	*/
+#define REQ_CLR_EOL	 (KEY_MAX + 38)	/* clear to end of line		*/
+#define REQ_CLR_EOF	 (KEY_MAX + 39)	/* clear to end of field	*/
+#define REQ_CLR_FIELD	 (KEY_MAX + 40)	/* clear entire field		*/
+#define REQ_OVL_MODE	 (KEY_MAX + 41)	/* begin overlay mode		*/
+#define REQ_INS_MODE	 (KEY_MAX + 42)	/* begin insert mode		*/
+#define REQ_SCR_FLINE	 (KEY_MAX + 43)	/* scroll field forward a line	*/
+#define REQ_SCR_BLINE	 (KEY_MAX + 44)	/* scroll field backward a line	*/
+#define REQ_SCR_FPAGE	 (KEY_MAX + 45)	/* scroll field forward a page	*/
+#define REQ_SCR_BPAGE	 (KEY_MAX + 46)	/* scroll field backward a page	*/
+#define REQ_SCR_FHPAGE	 (KEY_MAX + 47) /* scroll field forward	 half page */
+#define REQ_SCR_BHPAGE	 (KEY_MAX + 48) /* scroll field backward half page */
+#define REQ_SCR_FCHAR	 (KEY_MAX + 49) /* horizontal scroll char	*/
+#define REQ_SCR_BCHAR	 (KEY_MAX + 50) /* horizontal scroll char	*/
+#define REQ_SCR_HFLINE	 (KEY_MAX + 51) /* horizontal scroll line	*/
+#define REQ_SCR_HBLINE	 (KEY_MAX + 52) /* horizontal scroll line	*/
+#define REQ_SCR_HFHALF	 (KEY_MAX + 53) /* horizontal scroll half line	*/
+#define REQ_SCR_HBHALF	 (KEY_MAX + 54) /* horizontal scroll half line	*/
+
+#define REQ_VALIDATION	 (KEY_MAX + 55)	/* validate field		*/
+#define REQ_NEXT_CHOICE	 (KEY_MAX + 56)	/* display next field choice	*/
+#define REQ_PREV_CHOICE	 (KEY_MAX + 57)	/* display prev field choice	*/
+
+#define MIN_FORM_COMMAND (KEY_MAX + 1)	/* used by form_driver		*/
+#define MAX_FORM_COMMAND (KEY_MAX + 57)	/* used by form_driver		*/
+
+#if defined(MAX_COMMAND)
+#  if (MAX_FORM_COMMAND > MAX_COMMAND)
+#    error Something is wrong -- MAX_FORM_COMMAND is greater than MAX_COMMAND
+#  elif (MAX_COMMAND != (KEY_MAX + 128))
+#    error Something is wrong -- MAX_COMMAND is already inconsistently defined.
+#  endif
+#else
+#  define MAX_COMMAND (KEY_MAX + 128)
+#endif
+
+	/*************************
+	*  standard field types  *
+	*************************/
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP;
+
+	/************************************
+	*  built-in additional field types  *
+	*  They are not defined in SVr4     *
+	************************************/
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4;      /* Internet IP Version 4 address */
+
+	/***********************
+	*  FIELDTYPE routines  *
+	***********************/
+extern FORM_EXPORT(FIELDTYPE *) new_fieldtype (
+		    bool (* const field_check)(FIELD *,const void *),
+		    bool (* const char_check)(int,const void *));
+extern FORM_EXPORT(FIELDTYPE *) link_fieldtype(
+		    FIELDTYPE *, FIELDTYPE *);
+
+extern FORM_EXPORT(int)	free_fieldtype (FIELDTYPE *);
+extern FORM_EXPORT(int)	set_fieldtype_arg (FIELDTYPE *,
+		    void * (* const make_arg)(va_list *),
+		    void * (* const copy_arg)(const void *),
+		    void (* const free_arg)(void *));
+extern FORM_EXPORT(int)	 set_fieldtype_choice (FIELDTYPE *,
+		    bool (* const next_choice)(FIELD *,const void *),
+	      	    bool (* const prev_choice)(FIELD *,const void *));
+
+	/*******************
+	*  FIELD routines  *
+	*******************/
+extern FORM_EXPORT(FIELD *)	new_field (int,int,int,int,int,int);
+extern FORM_EXPORT(FIELD *)	dup_field (FIELD *,int,int);
+extern FORM_EXPORT(FIELD *)	link_field (FIELD *,int,int);
+
+extern FORM_EXPORT(int)	free_field (FIELD *);
+extern FORM_EXPORT(int)	field_info (const FIELD *,int *,int *,int *,int *,int *,int *);
+extern FORM_EXPORT(int)	dynamic_field_info (const FIELD *,int *,int *,int *);
+extern FORM_EXPORT(int)	set_max_field ( FIELD *,int);
+extern FORM_EXPORT(int)	move_field (FIELD *,int,int);
+extern FORM_EXPORT(int)	set_field_type (FIELD *,FIELDTYPE *,...);
+extern FORM_EXPORT(int)	set_new_page (FIELD *,bool);
+extern FORM_EXPORT(int)	set_field_just (FIELD *,int);
+extern FORM_EXPORT(int)	field_just (const FIELD *);
+extern FORM_EXPORT(int)	set_field_fore (FIELD *,chtype);
+extern FORM_EXPORT(int)	set_field_back (FIELD *,chtype);
+extern FORM_EXPORT(int)	set_field_pad (FIELD *,int);
+extern FORM_EXPORT(int)	field_pad (const FIELD *);
+extern FORM_EXPORT(int)	set_field_buffer (FIELD *,int,const char *);
+extern FORM_EXPORT(int)	set_field_status (FIELD *,bool);
+extern FORM_EXPORT(int)	set_field_userptr (FIELD *, void *);
+extern FORM_EXPORT(int)	set_field_opts (FIELD *,Field_Options);
+extern FORM_EXPORT(int)	field_opts_on (FIELD *,Field_Options);
+extern FORM_EXPORT(int)	field_opts_off (FIELD *,Field_Options);
+
+extern FORM_EXPORT(chtype)	field_fore (const FIELD *);
+extern FORM_EXPORT(chtype)	field_back (const FIELD *);
+
+extern FORM_EXPORT(bool)	new_page (const FIELD *);
+extern FORM_EXPORT(bool)	field_status (const FIELD *);
+
+extern FORM_EXPORT(void *)	field_arg (const FIELD *);
+
+extern FORM_EXPORT(void *)	field_userptr (const FIELD *);
+
+extern FORM_EXPORT(FIELDTYPE *)	field_type (const FIELD *);
+
+extern FORM_EXPORT(char *)	field_buffer (const FIELD *,int);
+
+extern FORM_EXPORT(Field_Options)	field_opts (const FIELD *);
+
+	/******************
+	*  FORM routines  *
+	******************/
+
+extern FORM_EXPORT(FORM *)	new_form (FIELD **);
+
+extern FORM_EXPORT(FIELD **)	form_fields (const FORM *);
+extern FORM_EXPORT(FIELD *)	current_field (const FORM *);
+
+extern FORM_EXPORT(WINDOW *)	form_win (const FORM *);
+extern FORM_EXPORT(WINDOW *)	form_sub (const FORM *);
+
+extern FORM_EXPORT(Form_Hook)	form_init (const FORM *);
+extern FORM_EXPORT(Form_Hook)	form_term (const FORM *);
+extern FORM_EXPORT(Form_Hook)	field_init (const FORM *);
+extern FORM_EXPORT(Form_Hook)	field_term (const FORM *);
+
+extern FORM_EXPORT(int)	free_form (FORM *);
+extern FORM_EXPORT(int)	set_form_fields (FORM *,FIELD **);
+extern FORM_EXPORT(int)	field_count (const FORM *);
+extern FORM_EXPORT(int)	set_form_win (FORM *,WINDOW *);
+extern FORM_EXPORT(int)	set_form_sub (FORM *,WINDOW *);
+extern FORM_EXPORT(int)	set_current_field (FORM *,FIELD *);
+extern FORM_EXPORT(int)	unfocus_current_field (FORM *);
+extern FORM_EXPORT(int)	field_index (const FIELD *);
+extern FORM_EXPORT(int)	set_form_page (FORM *,int);
+extern FORM_EXPORT(int)	form_page (const FORM *);
+extern FORM_EXPORT(int)	scale_form (const FORM *,int *,int *);
+extern FORM_EXPORT(int)	set_form_init (FORM *,Form_Hook);
+extern FORM_EXPORT(int)	set_form_term (FORM *,Form_Hook);
+extern FORM_EXPORT(int)	set_field_init (FORM *,Form_Hook);
+extern FORM_EXPORT(int)	set_field_term (FORM *,Form_Hook);
+extern FORM_EXPORT(int)	post_form (FORM *);
+extern FORM_EXPORT(int)	unpost_form (FORM *);
+extern FORM_EXPORT(int)	pos_form_cursor (FORM *);
+extern FORM_EXPORT(int)	form_driver (FORM *,int);
+# if NCURSES_WIDECHAR
+extern FORM_EXPORT(int)	form_driver_w (FORM *,int,wchar_t);
+# endif
+extern FORM_EXPORT(int)	set_form_userptr (FORM *,void *);
+extern FORM_EXPORT(int)	set_form_opts (FORM *,Form_Options);
+extern FORM_EXPORT(int)	form_opts_on (FORM *,Form_Options);
+extern FORM_EXPORT(int)	form_opts_off (FORM *,Form_Options);
+extern FORM_EXPORT(int)	form_request_by_name (const char *);
+
+extern FORM_EXPORT(const char *)	form_request_name (int);
+
+extern FORM_EXPORT(void *)	form_userptr (const FORM *);
+
+extern FORM_EXPORT(Form_Options)	form_opts (const FORM *);
+
+extern FORM_EXPORT(bool)	data_ahead (const FORM *);
+extern FORM_EXPORT(bool)	data_behind (const FORM *);
+
+#if NCURSES_SP_FUNCS
+extern FORM_EXPORT(FORM *)	NCURSES_SP_NAME(new_form) (SCREEN*, FIELD **);
+#endif
+
+#ifdef __cplusplus
+  }
+#endif
+/* *INDENT-ON*/
+
+#endif /* FORM_H */