int post_form(FORM form);
int unpost_form(FORM form);
post_form writes form into its associated subwindow.
The application programmer must use curses library routines
to display the form on the physical screen or call update_panels
if the panels library is being used.
unpost_form erases form from its associated subwindow.
These routines return one of the following:
The function returned successfully.
An argument is incorrect.
The form is posted.
The form is not posted.
The form does not fit in the subwindow.
The routine was called from an initialization
or termination function.
The field is not connected to a form.
The header file form.h automatically includes the header files
eti.h and ocurses.h.