pos_form_cursor moves the form window cursor to the location
required by the form driver to resume form processing.
This may be needed after the application calls
a curses library I/O routine.
<Return> value
pos_form_cursor returns one of the following:
E_OK
The function returned successfully.
E_SYSTEM_ERROR
System error.
E_BAD_ARGUMENT
An argument is incorrect.
E_NOT_POSTED
The form is not posted.
Notices
The header file form.h automatically includes the header files
eti.h and ocurses.h.