dup_field man page on AIX

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form_field_new(3X)					    form_field_new(3X)

       form_field_new - create and destroy form fields

       #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);

       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 status 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.

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

       E_OK The routine succeeded.

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

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

       The function free_field returns one of the following:

       E_OK The routine succeeded.

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

	    field is connected.

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

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

       These  routines emulate the System V forms library.  They were not sup‐
       ported on Version 7 or BSD versions.

       It may  be  unwise  to  count  on  the  set  of	attributes  copied  by
       dup_field(3X)  being portable; the System V forms library documents are
       not very explicit about what gets copied and what doesn't.

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

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