+/Rtakes an entity specification, which is a cons pair with a relation in its CAR and an expression, evaluating to an object, in its CDR. For example:
'(text : home obj)
+/Ris used in locked, read-only, GUI components. It does not modify the value in the object. However, that does not happen in '+Lock'ed components anyway. See also +E/R, +Lock.
'(<grid> 2 "Radio A" (gui '(+Var +Radio) '*DemoRadio NIL "A") "Radio B" (gui '(+Radio) -1 "B") "Radio C" (gui '(+Radio) -2 "C") )
+Radio components only makes sense as a group. The first argument to a +Radio component is either NIL or a field reference. If the first argument is NIL, the component in question will be the 'leader component' of a radio group. In the example above "Radio A" holds this position.
The following +Radio components in our example have a field reference as their first argument. This reference points back to the 'leader component' of the radio group. Our example uses a relative, numeric, offset to another field, but the symbolic name of a field can also be used.
The 'leader component' of a radio group takes care of holding the resulting value. As can be seen above, the first +Radio component uses a prefix class, +Var. This class is used to connect a variable to a gui component. Since this is the 'leader' of the radio group, its variable (*DemoRadio) will be populated with the value that results from selecting one of the radio buttons.See also gui, +field and input fields.
<input type="color"...>. See also +field.
The text field in the above example has had the lock removed by +Rid and is editable even when the current form as such is locked. Worth noting though is that the field may still have it's own
"Some text" (gui (+Rid +TextField) 30)
+Ableexpression, which may happen to disable it again. See also +Able.
The list of fields to clear can also contain an expression used to populate the field with a new value, instead of emptying the field.
(resetButton '(nr nm pr sup query)))
See also +Force, +ClrButton.
(resetButton '((dat date) nr nm))
See also prev.
(de row (D) (+ (: chart 1 ofs) (: chart 2) -1 (or D 0)) )