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form_field_userptr 3x



form_field_userptr(3x)                           form_field_userptr(3x)




NAME

       form_field_userptr  -  associate  application  data with a
       form field


SYNOPSIS

       #include <form.h>
       int set_field_userptr(FIELD *field, void*userptr);
       void *field_userptr(const FIELD *field);


DESCRIPTION

       Every form field has a field that  can  be  used  to  hold
       application-specific  data  (that is, the form-driver code
       leaves it alone).  These functions get and set that field.


RETURN VALUE

       The function field_userptr returns a pointer (which may be
       NULL).  It does not set errno.

       The function set_field_userptr returns E_OK (success).


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.

       The user pointer is a void pointer.  We chose not to leave
       it as a char pointer for SVr4 compatibility.


AUTHORS

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



                                                 form_field_userptr(3x)

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