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curses(3X)



forms(3X)        MISCELLANEOUS LIBRARY FUNCTIONS        forms(3X)



NAME
     forms - character based forms package

SYNOPSIS
     #include <form.h>

DESCRIPTION
     The form library is built using the curses library, and  any
     program  using  forms  routines  must call one of the curses
     initialization routines such as initscr.   A  program  using
     these  routines must be compiled with -lform and -lcurses on
     the cc command line.

     The  forms  package  gives  the  applications  programmer  a
     terminal-independent  method  of  creating  and  customizing
     forms for user-interaction.   The  forms  package  includes:
     field  routines,  which  are  used  to  create and customize
     fields, link fields and assign field types;  fieldtype  rou-
     tines, which are used to create new field types for validat-
     ing fields; and form routines, which are used to create  and
     customize  forms,  assign pre/post processing functions, and
     display and interact with forms.

  Current Default Values for Field Attributes
     The forms package establishes initial current default values
     for  field  attributes.   During  field initialization, each
     field attribute is assigned the current  default  value  for
     that  attribute.   An  application  can change or retrieve a
     current default attribute value by calling  the  appropriate
     set  or  retrieve  routine with a NULL field pointer.  If an
     application changes a current default field attribute value,
     subsequent  fields created using new_field will have the new
     default attribute  value.   (The  attributes  of  previously
     created  fields  are not changed if a current default attri-
     bute value is changed.)

  Routine Name Index
     The following table lists each forms routine and the name of
     the manual page on which it is described.
     forms Routine Name     Manual Page Name
     ________________________________________________














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()                MISC. REFERENCE MANUAL PAGES                 ()



     current_field          form_page(3X)
     data_ahead             form_data(3X)
     data_behind            form_data(3X)
     dup_field              form_field_new(3X)
     dynamic_field_info     form_field_info(3X)
     field_arg              form_field_validation(3X)
     field_back             form_field_attributes(3X)
     field_buffer           form_field_buffer(3X)
     field_count            form_field(3X)
     field_fore             form_field_attributes(3X)
     field_index            form_page(3X)
     field_info             form_field_info(3X)
     field_init             form_hook(3X)
     field_just             form_field_just(3X)
     field_opts             form_field_opts(3X)
     field_opts_off         form_field_opts(3X)
     field_opts_on          form_field_opts(3X)
     field_pad              form_field_attributes(3X)
     field_status           form_field_buffer(3X)
     field_term             form_hook(3X)
     field_type             form_field_validation(3X)
     field_userptr          form_field_userptr(3X)
     form_driver            form_driver(3X)
     form_fields            form_field(3X)
     form_init              form_hook(3X)
     form_opts              form_opts(3X)
     form_opts_off          form_opts(3X)
     form_opts_on           form_opts(3X)
     form_page              form_page(3X)
     form_sub               form_win(3X)
     form_term              form_hook(3X)
     form_userptr           form_userptr(3X)
     form_win               form_win(3X)
     free_field             form_field_new(3X)
     free_fieldtype         form_fieldtype(3X)
     free_form              form_new(3X)
     link_field             form_field_new(3X)
     link_fieldtype         form_fieldtype(3X)
     move_field             form_field(3X)
     new_field              form_field_new(3X)
     new_fieldtype          form_fieldtype(3X)
     new_form               form_new(3X)
     new_page               form_new_page(3X)
     pos_form_cursor        form_cursor(3X)
     post_form              form_post(3X)
     scale_form             form_win(3X)
     set_current_field      form_page(3X)
     set_field_back         form_field_attributes(3X)
     set_field_buffer       form_field_buffer(3X)
     set_field_fore         form_field_attributes(3X)
     set_field_init         form_hook(3X)
     set_field_just         form_field_just(3X)



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     set_field_opts         form_field_opts(3X)
     set_field_pad          form_field_attributes(3X)
     set_field_status       form_field_buffer(3X)
     set_field_term         form_hook(3X)
     set_field_type         form_field_validation(3X)
     set_field_userptr      form_field_userptr(3X)
     set_fieldtype_arg      form_fieldtype(3X)
     set_fieldtype_choice   form_fieldtype(3X)
     set_form_fields        form_field(3X)
     set_form_init          form_hook(3X)
     set_form_opts          form_opts(3X)
     set_form_page          form_page(3X)
     set_form_sub           form_win(3X)
     set_form_term          form_hook(3X)
     set_form_userptr       form_userptr(3X)
     set_form_win           form_win(3X)
     set_max_field          form_field_buffer(3X)
     set_new_page           form_new_page(3X)
     unpost_form            form_post(3X)

RETURN VALUE
     Routines that return a pointer always return NULL on  error.
     Routines that return an integer return one of the following:

     E_OK                -   The function returned successfully.
     E_CONNECTED         -   The field is already connected to a form.
     E_SYSTEM_ERROR      -   System error.
     E_BAD_ARGUMENT      -   An argument is incorrect.
     E_CURRENT           -   The field is the current field.
     E_POSTED            -   The form is posted.
     E_NOT_POSTED        -   The form is not posted.
     E_INVALID_FIELD     -   The field contents are invalid.
     E_NOT_CONNECTED     -   The field is not connected to a form.
     E_NO_ROOM           -   The form does not fit in the subwindow.
     E_BAD_STATE         -   The routine was called from an  initiali-
                             zation or termination function.
     E_REQUEST_DENIED    -   The form driver request failed.
     E_UNKNOWN_COMMAND   -   An unknown request was passed to the  the
                             form driver.

NOTES
     The header file <form.h> automatically includes  the  header
     files <eti.h> and <curses.h>.

SEE ALSO
     curses(3X), and 3X  pages  whose  names  begin  "form_"  for
     detailed routine descriptions.








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