form_field_new(3x) - phpMan

form_field_new(3X)                                                             form_field_new(3X)



NAME
       form_field_new - create and destroy form fields

SYNOPSIS
       #include <form.h>
       FIELD *new_field(int height, int width,
                        int toprow, int leftcol,
                        int offscreen, int nbuffers);
       FIELD *dup_field(FIELD *field, int toprow, int leftcol);
       FIELD *link_field(FIELD *field, int toprow, int leftcol);
       int free_field(FIELD *field);

DESCRIPTION
       The function new_field allocates a new field and initializes it from the parameters given:
       height, width, row of upper-left corner, column of upper-left  corner,  number  off-screen
       rows, and number of additional working buffers.

       The  function  dup_field duplicates a field at a new location.  Most attributes (including
       current contents, size, validation type, buffer count,  growth  threshold,  justification,
       foreground,  background, pad character, options, and user pointer) are copied.  Field sta-
       tus and the field page bit are not copied.

       The function link_field acts like dup_field, but the new field  shares  buffers  with  its
       parent.  Attribute data is separate.

       The function free_field de-allocates storage associated with a field.

RETURN VALUE
       The  function,  new_field,  dup_field,  link_field  return  NULL on error.  They set errno
       according to their success:

       E_OK The routine succeeded.

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

       E_SYSTEM_ERROR
            System error occurred, e.g., malloc failure.

       The function free_field returns one of the following:

       E_OK The routine succeeded.

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

       E_CONNECTED
            field is connected.

SEE ALSO
       curses(3X), form(3X).

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

PORTABILITY
       These routines emulate the System V forms library.  They were not supported on  Version  7
       or BSD versions.

       It may be unwise to count on the set of attributes copied by dup_field being portable; the
       System V forms library documents are not very explicit about what  gets  copied  and  what
       does not.

AUTHORS
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.



                                                                               form_field_new(3X)

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