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FORM_PAGE(3) BSD Library Functions Manual FORM_PAGE(3)
current_field, field_index, form_page, form_max_page, set_current_field, set_form_page --
Curses Form Library (libform, -lform)
set_current_field(FORM *form, FIELD *field);
set_form_page(FORM *form, int page);
The current_field() returns a pointer to the structure for the field that is currently
active on the page. If there is an error, current_field() will return NULL. Calling
field_index() will return the index of the given field in the form field array. The current
page the form is on can be determined by using form_page(), the current page of a form can
be programmatically set by calling set_form_page(). The maximum page number for a form can
be found by calling the function form_max_page() but note that this function is a NetBSD
extension and must not be used in portable forms library programs. The current field on the
form may be set by calling set_current_field() which will set the current field to the one
Functions returning pointers will return NULL if an error is detected. The functions that
return an int will return one of the following error values:
E_OK The function was successful.
E_BAD_ARGUMENT The function was passed a bad argument.
E_NOT_CONNECTED The given field is not associated with a form.
E_BAD_STATE The function was called from within an init or term function.
E_INVALID_FIELD The field given is not part of the given form.
The header <form.h> automatically includes both <curses.h> and <eti.h>.
The form_max_page is a NetBSD extension and should not be used in portable applications.
BSD January 1, 2001 BSD
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