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form_field_userptr - associate application data with a form field |
#include <form.h> |
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. |
The function field_userptr returns NULL on error. The function set_field_userptr returns one of the following: |
E_OK |
The routine succeeded. |
E_SYSTEM_ERROR |
System error occurred (see errno). |
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 should be a void pointer. We leave it as a char pointer for SVr4 compatibility. |
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond. |