+DbHint
    +DbHint supplies autocomplete suggestions from the database.
    
    
    (gui 'nam '(+Var +DbHint +TextField) '*UsrNam '(nam +User) 30)
    +TextField that has been extended with two
    classes, +Var and +DbHint. +Var
    connects the field to a variable and +DbHint fetches
    autocomplete suggestions from the database. As you can see,
    +DbHint is given the argument '(nam +User). This
    tells it to fetch the property "nam" from the class "+User". See also +hint, +Var and +TextField.
+Dflt
    (diaform 'lst prg) 
    diaForm is a form that has a dual nature in that it can
    behave both as a form and as a dialog. When called from a form, by pressing
    a button (POST) it shows up as a dialog. Otherwise, when called via a link
    (GET), it shows up as a form. diaform is commonly used in
    search dialogs, often together with an idForm. This way,
    functionality to search for, select and edit objects is combined in a single
    page of the application.
    
    (de choItem (Dst)
       (diaform '(Dst)
          (<grid> "--.-."
             ...
             ... )
          (gui 'query '(+QueryChart) (cho)
             ...
             ... )
          (<table> 'chart (choTtl ,"Items" 'nr '+Item)
             ...
             ... )
          (<spread>
             ...
             ... ) ) )
    (dialog Env . Prg) 
    (disable Flg)
    NIL
    argument. It overrides the standard form enable/disable, in that it can
    disable the form even if it would be otherwise enabled. This affects all
    components in this form. The following example makes a form read-only until
    Christmas:
    
    (form NIL
       (disable (> (12 24) (cdr (date (date)))))  # Disable whole form
       (gui ..)
       .. )
    +Rid prefix class. See also +Rid.
(delButton Able @Txt) 
    +DelRowButton
    +DnButton
    +Drop
    
    (gui '(+Able +UpField) '(not (: home obj jpg)) 30)
    (gui '(+Drop +Button) '(field -1)
       '(if (: home obj jpg) ,"Uninstall" ,"Install")
          '(cond
             ((: home obj jpg)
                (ask ,"Uninstall Picture?"
                   (put!> (: home top 1 obj) 'jpg NIL) ) )
             ((: drop) (blob! (: home obj) 'jpg @)) ) )
    +DstButton
    +DstButton, Destination button, has a dual behaviour,
    manifesting itself as a button or a plain link. The button is always labeled
    as "@", but if +DstButton is used in a dialog which chooses an
    object to be stored in a field of the calling form it manifests as a button.
    In this case, pressing the button stores the object in the destination
    field. Otherwise, +DstButton manifests itself as a plain link
    and clicking the link causes a jump to that object. Typical usage is in
    choice (search) dialogs, which are used both for jumping to objects and for
    selecting objects in other forms.+DstButton when presenting the
    search result in a QueryChart. Since we are not about to choose
    an object to be stored in a field of the calling form, this
    +DstButton will manifest as a link and cause a jump to an
    object.
    '((This) (list This This (: pa) (: ma) (: mate) (: job) (: dat)))
    
      (<table> 'chart NIL
         '((btn) (NIL "Name") (NIL "Father") (NIL "Mother") (NIL "Partner") (NIL "Occupation") (NIL "born"))
         (do (cho)
            (<row> (alternating)
               (gui 1 '(+DstButton) Dst)
               (gui 2 '(+ObjView +TextField) '(: nm))
               (gui 3 '(+ObjView +TextField) '(: nm))
               (gui 4 '(+ObjView +TextField) '(: nm))
               (gui 5 '(+ObjView +TextField) '(: nm))
               (gui 6 '(+TextField))
               (gui 7 '(+DateField)) ) ) )
    +DateField
    
    (gui '(+DateField) 10)