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form_userptr
Section: Miscellaneous Library Functions (3X)Updated:
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NAME
form_userptr - associate application data with a form itemSYNOPSIS
#include <form.h>int set_form_userptr(FORM *form, void *userptr);
void* form_userptr(const FORM *form);
DESCRIPTION
Every form and every form item 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 the form user pointer field.RETURN VALUE
The function form_userptr returns a pointer (which may be NULL). It does not set errno.The function set_form_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.