mirror of
https://github.com/Aigor44/ncursesw-morphos.git
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ce4803687b
+ fix several formatting issues with manual pages. + correct read of terminfo entry in which all strings are absent or explicitly cancelled. Before this fix, the result was that all were treated as only absent. + modify infocmp to suppress mixture of absent/cancelled capabilities that would only show as "NULL, NULL", unless the -q option is used, e.g., to show "-, @" or "@, -".
267 lines
16 KiB
HTML
267 lines
16 KiB
HTML
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* @Id: form.3x,v 1.29 2017/02/18 16:46:53 tom Exp @
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<HEAD>
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>form 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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</HEAD>
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<BODY>
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<H1 class="no-header">form 3x</H1>
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<PRE>
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<STRONG><A HREF="form.3x.html">form(3x)</A></STRONG> <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>
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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>form</STRONG> - curses extension for programming forms
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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The <STRONG>form</STRONG> library provides terminal-independent facilities
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for composing form screens on character-cell terminals.
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The library includes: field routines, which create and
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modify form fields; and form routines, which group fields
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into forms, display forms on the screen, and handle inter-
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action with the user.
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The <STRONG>form</STRONG> library uses the <STRONG>curses</STRONG> libraries. To use the
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<STRONG>form</STRONG> library, link with the options <STRONG>-lform</STRONG> <STRONG>-lcurses</STRONG>.
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Your program should set up the locale, e.g.,
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<STRONG>setlocale(LC_ALL,</STRONG> <STRONG>"");</STRONG>
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so that input/output processing will work.
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A curses initialization routine such as <STRONG>initscr</STRONG> must be
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called before using any of these functions.
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</PRE><H3><a name="h3-Current-Default-Values-for-Field-Attributes">Current Default Values for Field Attributes</a></H3><PRE>
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The <STRONG>form</STRONG> library maintains a default value for field
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attributes. You can get or set this default by calling
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the appropriate <STRONG>set_</STRONG> or retrieval routine with a <STRONG>NULL</STRONG>
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field pointer. Changing this default with a <STRONG>set_</STRONG> function
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affects future field creations, but does not change the
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rendering of fields already created.
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</PRE><H3><a name="h3-Routine-Name-Index">Routine Name Index</a></H3><PRE>
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The following table lists each <STRONG>form</STRONG> routine and the name
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of the manual page on which it is described.
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<STRONG>curses</STRONG> Routine Name Manual Page Name
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--------------------------------------------------
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current_field <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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data_ahead <STRONG><A HREF="form_data.3x.html">form_data(3x)</A></STRONG>
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data_behind <STRONG><A HREF="form_data.3x.html">form_data(3x)</A></STRONG>
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dup_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
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dynamic_field_info <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG>
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field_arg <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG>
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field_back <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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field_buffer <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
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field_count <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
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field_fore <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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field_index <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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field_info <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG>
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field_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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field_just <STRONG><A HREF="form_field_just.3x.html">form_field_just(3x)</A></STRONG>
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field_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG>
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field_opts_off <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG>
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field_opts_on <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG>
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field_pad <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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field_status <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
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field_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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field_type <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG>
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field_userptr <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>
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form_driver <STRONG><A HREF="form_driver.3x.html">form_driver(3x)</A></STRONG>
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form_driver_w <STRONG><A HREF="form_driver.3x.html">form_driver(3x)</A></STRONG>*
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form_fields <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
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form_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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form_opts <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG>
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form_opts_off <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG>
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form_opts_on <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG>
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form_page <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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form_request_by_name <STRONG><A HREF="form_requestname.3x.html">form_requestname(3x)</A></STRONG>
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form_request_name <STRONG><A HREF="form_requestname.3x.html">form_requestname(3x)</A></STRONG>
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form_sub <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG>
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form_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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form_userptr <STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG>
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form_win <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG>
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free_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
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free_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG>
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free_form <STRONG><A HREF="form_new.3x.html">form_new(3x)</A></STRONG>
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link_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
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link_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG>
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move_field <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
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new_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
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new_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG>
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new_form <STRONG><A HREF="form_new.3x.html">form_new(3x)</A></STRONG>
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new_page <STRONG><A HREF="form_new_page.3x.html">form_new_page(3x)</A></STRONG>
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pos_form_cursor <STRONG><A HREF="form_cursor.3x.html">form_cursor(3x)</A></STRONG>
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post_form <STRONG><A HREF="form_post.3x.html">form_post(3x)</A></STRONG>
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scale_form <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG>
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set_current_field <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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set_field_back <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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set_field_buffer <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
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set_field_fore <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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set_field_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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set_field_just <STRONG><A HREF="form_field_just.3x.html">form_field_just(3x)</A></STRONG>
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set_field_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG>
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set_field_pad <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG>
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set_field_status <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
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set_field_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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set_field_type <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG>
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set_field_userptr <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>
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set_fieldtype_arg <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG>
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set_fieldtype_choice <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG>
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set_form_fields <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
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set_form_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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set_form_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG>
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set_form_page <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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set_form_sub <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG>
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set_form_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
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set_form_userptr <STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG>
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set_form_win <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG>
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set_max_field <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
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set_new_page <STRONG><A HREF="form_new_page.3x.html">form_new_page(3x)</A></STRONG>
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unfocus_current_field <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG>
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unpost_form <STRONG><A HREF="form_post.3x.html">form_post(3x)</A></STRONG>
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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Routines that return pointers return <STRONG>NULL</STRONG> on error, and
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set errno to the corresponding error-code returned by
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functions returning an integer. Routines that return an
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integer return one of the following error codes:
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<STRONG>E_OK</STRONG> The routine succeeded.
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<STRONG>E_BAD_ARGUMENT</STRONG>
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Routine detected an incorrect or out-of-range argu-
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ment.
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<STRONG>E_BAD_STATE</STRONG>
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Routine was called from an initialization or termina-
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tion function.
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<STRONG>E_CONNECTED</STRONG>
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The field is already connected to a form.
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<STRONG>E_INVALID_FIELD</STRONG>
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Contents of a field are not valid.
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<STRONG>E_NOT_CONNECTED</STRONG>
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No fields are connected to the form.
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<STRONG>E_NOT_POSTED</STRONG>
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The form has not been posted.
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<STRONG>E_NO_ROOM</STRONG>
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Form is too large for its window.
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<STRONG>E_POSTED</STRONG>
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The form is already posted.
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<STRONG>E_REQUEST_DENIED</STRONG>
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The form driver could not process the request.
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<STRONG>E_SYSTEM_ERROR</STRONG>
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System error occurred (see <STRONG>errno</STRONG>).
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<STRONG>E_UNKNOWN_COMMAND</STRONG>
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The form driver code saw an unknown request code.
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</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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The header file <STRONG><form.h></STRONG> automatically includes the header
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files <STRONG><curses.h></STRONG> and <STRONG><eti.h></STRONG>.
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In your library list, libform.a should be before libn-
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curses.a; that is, you want to say "-lform -lncurses", not
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the other way around (which would give you a link error
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when using static libraries).
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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These routines emulate the System V forms library. They
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were not supported on Version 7 or BSD versions.
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A few functions are extensions added for ncurses, e.g.,
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<STRONG>form_driver_w</STRONG>, <STRONG>unfocus_current_field</STRONG>.
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</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
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Juergen Pfeifer. Manual pages and adaptation for ncurses
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by Eric S. Raymond.
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</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> and related pages whose names begin "form_" for
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detailed descriptions of the entry points.
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This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20170218).
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<STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<ul>
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
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<ul>
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<li><a href="#h3-Current-Default-Values-for-Field-Attributes">Current Default Values for Field Attributes</a></li>
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<li><a href="#h3-Routine-Name-Index">Routine Name Index</a></li>
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</ul>
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</li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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<li><a href="#h2-AUTHORS">AUTHORS</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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</ul>
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</div>
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</BODY>
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</HTML>
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