#include<form.h>
int set_field_init(FORM *form, Form_Hook func);
Form_Hook field_init(const FORM *form);
@@ -65,71 +62,73 @@
Form_Hook form_term(const FORM *form);
-
-
DESCRIPTION
- These functions make it possible to set hook functions to
- be called at various points in the automatic processing of
- input event codes by form_driver.
+
+ These functions make it possible to set hook functions to be called at
+ various points in the automatic processing of input event codes by
+ form_driver.
- The function set_field_init sets a hook to be called at
- form-post time and each time the selected field changes
- (after the change). field_init returns the current field
- init hook, if any (NULL if there is no such hook).
+ The function set_field_init sets a hook to be called at form-post time
+ and each time the selected field changes (after the change).
+ field_init returns the current field init hook, if any (NULL if there
+ is no such hook).
- The function set_field_term sets a hook to be called at
- form-unpost time and each time the selected field changes
- (before the change). field_term returns the current field
- term hook, if any (NULL if there is no such hook).
+ The function set_field_term sets a hook to be called at form-unpost
+ time and each time the selected field changes (before the change).
+ field_term returns the current field term hook, if any (NULL if there
+ is no such hook).
- The function set_form_init sets a hook to be called at
- form-post time and just after a page change once it is
- posted. form_init returns the current form init hook, if
- any (NULL if there is no such hook).
+ The function set_form_init sets a hook to be called at form-post time
+ and just after a page change once it is posted. form_init returns the
+ current form init hook, if any (NULL if there is no such hook).
- The function set_form_term sets a hook to be called at
- form-unpost time and just before a page change once it is
- posted. form_init returns the current form term hook, if
- any (NULL if there is no such hook).
+ The function set_form_term sets a hook to be called at form-unpost time
+ and just before a page change once it is posted. form_init returns the
+ current form term hook, if any (NULL if there is no such hook).
-
-
RETURN VALUE
- Routines that return pointers return NULL on error. Other
- routines return one of the following:
+
+ Routines that return pointers return NULL on error. Other routines
+ return one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
- System error occurred (see errno).
+ System error occurred (see errno(3)).
-