form_field_userptr.3x man page

set_field_userptr, field_userptr — associate application data with a form field


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


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).


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


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.


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