| '\" t |
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| .\" $Id: form.3x,v 1.26 2015/08/02 18:14:50 tom Exp $ |
| .TH form 3X "" |
| .SH NAME |
| \fBform\fR \- curses extension for programming forms |
| .SH SYNOPSIS |
| \fB#include <form.h>\fR |
| .br |
| .SH DESCRIPTION |
| The \fBform\fR 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 interaction with the |
| user. |
| .PP |
| The \fBform\fR library uses the \fBcurses\fR libraries. |
| To use the \fBform\fR library, link with the options |
| \fB\-lform \-lcurses\fR. |
| .PP |
| Your program should set up the locale, e.g., |
| .sp |
| \fBsetlocale(LC_ALL, "");\fP |
| .sp |
| so that input/output processing will work. |
| .PP |
| A curses initialization routine such as \fBinitscr\fR must be called |
| before using any of these functions. |
| . |
| .SS Current Default Values for Field Attributes |
| . |
| The \fBform\fR library maintains a default value for field attributes. You |
| can get or set this default by calling the appropriate \fBset_\fR |
| or retrieval |
| routine with a \fBNULL\fR field pointer. Changing this default with a |
| \fBset_\fR function affects future field creations, but does not change the |
| rendering of fields already created. |
| . |
| .SS Routine Name Index |
| . |
| The following table lists each \fBform\fR routine and the name of |
| the manual page on which it is described. |
| . |
| .TS |
| l l |
| l l . |
| \fBcurses\fR Routine Name Manual Page Name |
| = |
| current_field \fBform_page\fR(3X) |
| data_ahead \fBform_data\fR(3X) |
| data_behind \fBform_data\fR(3X) |
| dup_field \fBform_field_new\fR(3X) |
| dynamic_field_info \fBform_field_info\fR(3X) |
| field_arg \fBform_field_validation\fR(3X) |
| field_back \fBform_field_attributes\fR(3X) |
| field_buffer \fBform_field_buffer\fR(3X) |
| field_count \fBform_field\fR(3X) |
| field_fore \fBform_field_attributes\fR(3X) |
| field_index \fBform_page\fR(3X) |
| field_info \fBform_field_info\fR(3X) |
| field_init \fBform_hook\fR(3X) |
| field_just \fBform_field_just\fR(3X) |
| field_opts \fBform_field_opts\fR(3X) |
| field_opts_off \fBform_field_opts\fR(3X) |
| field_opts_on \fBform_field_opts\fR(3X) |
| field_pad \fBform_field_attributes\fR(3X) |
| field_status \fBform_field_buffer\fR(3X) |
| field_term \fBform_hook\fR(3X) |
| field_type \fBform_field_validation\fR(3X) |
| field_userptr \fBform_field_userptr\fR(3X) |
| form_driver \fBform_driver\fR(3X) |
| form_driver_w \fBform_driver\fR(3X)* |
| form_fields \fBform_field\fR(3X) |
| form_init \fBform_hook\fR(3X) |
| form_opts \fBform_opts\fR(3X) |
| form_opts_off \fBform_opts\fR(3X) |
| form_opts_on \fBform_opts\fR(3X) |
| form_page \fBform_page\fR(3X) |
| form_request_by_name \fBform_requestname\fR(3X) |
| form_request_name \fBform_requestname\fR(3X) |
| form_sub \fBform_win\fR(3X) |
| form_term \fBform_hook\fR(3X) |
| form_userptr \fBform_userptr\fR(3X) |
| form_win \fBform_win\fR(3X) |
| free_field \fBform_field_new\fR(3X) |
| free_fieldtype \fBform_fieldtype\fR(3X) |
| free_form \fBform_new\fR(3X) |
| link_field \fBform_field_new\fR(3X) |
| link_fieldtype \fBform_fieldtype\fR(3X) |
| move_field \fBform_field\fR(3X) |
| new_field \fBform_field_new\fR(3X) |
| new_fieldtype \fBform_fieldtype\fR(3X) |
| new_form \fBform_new\fR(3X) |
| new_page \fBform_new_page\fR(3X) |
| pos_form_cursor \fBform_cursor\fR(3X) |
| post_form \fBform_post\fR(3X) |
| scale_form \fBform_win\fR(3X) |
| set_current_field \fBform_page\fR(3X) |
| set_field_back \fBform_field_attributes\fR(3X) |
| set_field_buffer \fBform_field_buffer\fR(3X) |
| set_field_fore \fBform_field_attributes\fR(3X) |
| set_field_init \fBform_hook\fR(3X) |
| set_field_just \fBform_field_just\fR(3X) |
| set_field_opts \fBform_field_opts\fR(3X) |
| set_field_pad \fBform_field_attributes\fR(3X) |
| set_field_status \fBform_field_buffer\fR(3X) |
| set_field_term \fBform_hook\fR(3X) |
| set_field_type \fBform_field_validation\fR(3X) |
| set_field_userptr \fBform_field_userptr\fR(3X) |
| set_fieldtype_arg \fBform_fieldtype\fR(3X) |
| set_fieldtype_choice \fBform_fieldtype\fR(3X) |
| set_form_fields \fBform_field\fR(3X) |
| set_form_init \fBform_hook\fR(3X) |
| set_form_opts \fBform_field_opts\fR(3X) |
| set_form_page \fBform_page\fR(3X) |
| set_form_sub \fBform_win\fR(3X) |
| set_form_term \fBform_hook\fR(3X) |
| set_form_userptr \fBform_userptr\fR(3X) |
| set_form_win \fBform_win\fR(3X) |
| set_max_field \fBform_field_buffer\fR(3X) |
| set_new_page \fBform_new_page\fR(3X) |
| unpost_form \fBform_post\fR(3X) |
| .TE |
| .SH RETURN VALUE |
| Routines that return pointers return \fBNULL\fR 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: |
| .TP 5 |
| .B E_OK |
| The routine succeeded. |
| .TP 5 |
| .B E_BAD_ARGUMENT |
| Routine detected an incorrect or out-of-range argument. |
| .TP 5 |
| .B E_BAD_STATE |
| Routine was called from an initialization or termination function. |
| .TP 5 |
| .B E_CONNECTED |
| The field is already connected to a form. |
| .TP 5 |
| .B E_INVALID_FIELD |
| Contents of a field are not valid. |
| .TP 5 |
| .B E_NOT_CONNECTED |
| No fields are connected to the form. |
| .TP 5 |
| .B E_NOT_POSTED |
| The form has not been posted. |
| .TP 5 |
| .B E_NO_ROOM |
| Form is too large for its window. |
| .TP 5 |
| .B E_POSTED |
| The form is already posted. |
| .TP 5 |
| .B E_REQUEST_DENIED |
| The form driver could not process the request. |
| .TP 5 |
| .B E_SYSTEM_ERROR |
| System error occurred (see \fBerrno\fR). |
| .TP 5 |
| .B E_UNKNOWN_COMMAND |
| The form driver code saw an unknown request code. |
| .SH NOTES |
| The header file \fB<form.h>\fR automatically includes the header files |
| \fB<curses.h>\fR and \fB<eti.h>\fR. |
| .PP |
| In your library list, libform.a should be before libncurses.a; that is, |
| you want to say `\-lform \-lncurses', not the other way around (which would |
| give you a link error using most linkers). |
| .SH PORTABILITY |
| These routines emulate the System V forms library. They were not supported on |
| Version 7 or BSD versions. |
| .SH AUTHORS |
| Juergen Pfeifer. Manual pages and adaptation for ncurses by Eric |
| S. Raymond. |
| .SH SEE ALSO |
| \fBcurses\fR(3X) and related pages whose names begin "form_" for detailed |
| descriptions of the entry points. |
| .PP |
| This describes \fBncurses\fR |
| version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@). |
