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| <HTML> | |
| <HEAD> | |
| <TITLE>form 3x</TITLE> | |
| <link rev=made href="mailto:bug-ncurses@gnu.org"> | |
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| </HEAD> | |
| <BODY> | |
| <H1>form 3x</H1> | |
| <HR> | |
| <PRE> | |
| <!-- Manpage converted by man2html 3.0.1 --> | |
| <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG> <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG> | |
| </PRE> | |
| <H2>NAME</H2><PRE> | |
| <STRONG>form</STRONG> - curses extension for programming forms | |
| </PRE> | |
| <H2>SYNOPSIS</H2><PRE> | |
| <STRONG>#include</STRONG> <STRONG><form.h></STRONG> | |
| </PRE> | |
| <H2>DESCRIPTION</H2><PRE> | |
| The <STRONG>form</STRONG> library provides terminal-independent facilities | |
| for composing form screens on character-cell terminals. | |
| The library includes: field routines, which create and | |
| modify form fields; and form routines, which group fields | |
| into forms, display forms on the screen, and handle inter- | |
| action with the user. | |
| The <STRONG>form</STRONG> library uses the <STRONG>curses</STRONG> libraries. To use the | |
| <STRONG>form</STRONG> library, link with the options <STRONG>-lform</STRONG> <STRONG>-lcurses</STRONG>. | |
| Your program should set up the locale, e.g., | |
| <STRONG>setlocale(LC_ALL,</STRONG> <STRONG>"");</STRONG> | |
| so that input/output processing will work. | |
| A curses initialization routine such as <STRONG>initscr</STRONG> must be | |
| called before using any of these functions. | |
| <STRONG>Current</STRONG> <STRONG>Default</STRONG> <STRONG>Values</STRONG> <STRONG>for</STRONG> <STRONG>Field</STRONG> <STRONG>Attributes</STRONG> | |
| The <STRONG>form</STRONG> library maintains a default value for field | |
| attributes. You can get or set this default by calling | |
| the appropriate <STRONG>set_</STRONG> or retrieval routine with a <STRONG>NULL</STRONG> | |
| field pointer. Changing this default with a <STRONG>set_</STRONG> function | |
| affects future field creations, but does not change the | |
| rendering of fields already created. | |
| <STRONG>Routine</STRONG> <STRONG>Name</STRONG> <STRONG>Index</STRONG> | |
| The following table lists each <STRONG>form</STRONG> routine and the name | |
| of the manual page on which it is described. | |
| <STRONG>curses</STRONG> Routine Name Manual Page Name | |
| ------------------------------------------------- | |
| current_field <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG> | |
| data_ahead <STRONG><A HREF="form_data.3x.html">form_data(3x)</A></STRONG> | |
| data_behind <STRONG><A HREF="form_data.3x.html">form_data(3x)</A></STRONG> | |
| dup_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG> | |
| dynamic_field_info <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG> | |
| field_arg <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG> | |
| field_back <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| field_buffer <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> | |
| field_count <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> | |
| field_fore <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| field_index <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG> | |
| field_info <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG> | |
| field_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| field_just <STRONG><A HREF="form_field_just.3x.html">form_field_just(3x)</A></STRONG> | |
| field_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG> | |
| field_opts_off <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG> | |
| field_opts_on <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG> | |
| field_pad <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| field_status <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> | |
| field_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| field_type <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG> | |
| field_userptr <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG> | |
| form_driver <STRONG><A HREF="form_driver.3x.html">form_driver(3x)</A></STRONG> | |
| form_fields <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> | |
| form_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| form_opts <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG> | |
| form_opts_off <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG> | |
| form_opts_on <STRONG><A HREF="form_opts.3x.html">form_opts(3x)</A></STRONG> | |
| form_page <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG> | |
| form_request_by_name <STRONG><A HREF="form_requestname.3x.html">form_requestname(3x)</A></STRONG> | |
| form_request_name <STRONG><A HREF="form_requestname.3x.html">form_requestname(3x)</A></STRONG> | |
| form_sub <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG> | |
| form_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| form_userptr <STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG> | |
| form_win <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG> | |
| free_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG> | |
| free_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> | |
| free_form <STRONG><A HREF="form_new.3x.html">form_new(3x)</A></STRONG> | |
| link_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG> | |
| link_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> | |
| move_field <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> | |
| new_field <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG> | |
| new_fieldtype <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> | |
| new_form <STRONG><A HREF="form_new.3x.html">form_new(3x)</A></STRONG> | |
| new_page <STRONG><A HREF="form_new_page.3x.html">form_new_page(3x)</A></STRONG> | |
| pos_form_cursor <STRONG><A HREF="form_cursor.3x.html">form_cursor(3x)</A></STRONG> | |
| post_form <STRONG><A HREF="form_post.3x.html">form_post(3x)</A></STRONG> | |
| scale_form <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG> | |
| set_current_field <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG> | |
| set_field_back <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| set_field_buffer <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> | |
| set_field_fore <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| set_field_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| set_field_just <STRONG><A HREF="form_field_just.3x.html">form_field_just(3x)</A></STRONG> | |
| set_field_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG> | |
| set_field_pad <STRONG><A HREF="form_field_attributes.3x.html">form_field_attributes(3x)</A></STRONG> | |
| set_field_status <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> | |
| set_field_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| set_field_type <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG> | |
| set_field_userptr <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG> | |
| set_fieldtype_arg <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> | |
| set_fieldtype_choice <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> | |
| set_form_fields <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> | |
| set_form_init <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| set_form_opts <STRONG><A HREF="form_field_opts.3x.html">form_field_opts(3x)</A></STRONG> | |
| set_form_page <STRONG><A HREF="form_page.3x.html">form_page(3x)</A></STRONG> | |
| set_form_sub <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG> | |
| set_form_term <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> | |
| set_form_userptr <STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG> | |
| set_form_win <STRONG><A HREF="form_win.3x.html">form_win(3x)</A></STRONG> | |
| set_max_field <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> | |
| set_new_page <STRONG><A HREF="form_new_page.3x.html">form_new_page(3x)</A></STRONG> | |
| unpost_form <STRONG><A HREF="form_post.3x.html">form_post(3x)</A></STRONG> | |
| </PRE> | |
| <H2>RETURN VALUE</H2><PRE> | |
| Routines that return pointers return <STRONG>NULL</STRONG> on error, and | |
| set errno to the corresponding error-code returned by | |
| functions returning an integer. Routines that return an | |
| integer return one of the following error codes: | |
| <STRONG>E_OK</STRONG> The routine succeeded. | |
| <STRONG>E_BAD_ARGUMENT</STRONG> | |
| Routine detected an incorrect or out-of-range argu- | |
| ment. | |
| <STRONG>E_BAD_STATE</STRONG> | |
| Routine was called from an initialization or termina- | |
| tion function. | |
| <STRONG>E_CONNECTED</STRONG> | |
| The field is already connected to a form. | |
| <STRONG>E_INVALID_FIELD</STRONG> | |
| Contents of a field are not valid. | |
| <STRONG>E_NOT_CONNECTED</STRONG> | |
| No fields are connected to the form. | |
| <STRONG>E_NOT_POSTED</STRONG> | |
| The form has not been posted. | |
| <STRONG>E_NO_ROOM</STRONG> | |
| Form is too large for its window. | |
| <STRONG>E_POSTED</STRONG> | |
| The form is already posted. | |
| <STRONG>E_REQUEST_DENIED</STRONG> | |
| The form driver could not process the request. | |
| <STRONG>E_SYSTEM_ERROR</STRONG> | |
| System error occurred (see <STRONG>errno</STRONG>). | |
| <STRONG>E_UNKNOWN_COMMAND</STRONG> | |
| The form driver code saw an unknown request code. | |
| </PRE> | |
| <H2>SEE ALSO</H2><PRE> | |
| <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> and related pages whose names begin "form_" for | |
| detailed descriptions of the entry points. | |
| </PRE> | |
| <H2>NOTES</H2><PRE> | |
| The header file <STRONG><form.h></STRONG> automatically includes the header | |
| files <STRONG><curses.h></STRONG> and <STRONG><eti.h></STRONG>. | |
| In your library list, libform.a should be before libn- | |
| curses.a; that is, you want to say `-lform -lncurses', not | |
| the other way around (which would give you a link error | |
| using most linkers). | |
| </PRE> | |
| <H2>PORTABILITY</H2><PRE> | |
| These routines emulate the System V forms library. They | |
| were not supported on Version 7 or BSD versions. | |
| </PRE> | |
| <H2>AUTHORS</H2><PRE> | |
| Juergen Pfeifer. Manual pages and adaptation for ncurses | |
| by Eric S. Raymond. | |
| </PRE> | |
| <H2>SEE ALSO</H2><PRE> | |
| This describes <STRONG>ncurses</STRONG> version 5.6 (patch 20081011). | |
| <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG> | |
| </PRE> | |
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