This should be implemented for components which either display a value from a bounded range, or which allow the user to specify a value from a bounded range, or both. For instance, most sliders and range controls, as well as dials, should have Atk::Object representations which implement Atk::Value on the component's behalf. Atk::Values may be read-only, in which case attempts to alter the value return false to indicate failure.
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Public Member Functions |
void | get_current_value (Glib::ValueBase& value) const |
| Gets the value of this object.
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void | get_maximum_value (Glib::ValueBase& value) const |
| Gets the maximum value of this object.
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void | get_minimum_value (Glib::ValueBase& value) const |
| Gets the minimum value of this object.
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const AtkValue* | gobj () const |
| Provides access to the underlying C GObject.
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AtkValue* | gobj () |
| Provides access to the underlying C GObject.
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bool | set_current_value (const Glib::ValueBase& value) |
| Sets the value of this object.
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virtual | ~Value () |
Static Public Member Functions |
static void | add_interface (GType gtype_implementer) |
Protected Member Functions |
virtual void | get_current_value_vfunc (Glib::ValueBase& value) const |
virtual void | get_maximum_value_vfunc (Glib::ValueBase& value) const |
virtual void | get_minimum_value_vfunc (Glib::ValueBase& value) const |
virtual bool | set_current_value_vfunc (const Glib::ValueBase& value) |
Related Functions |
(Note that these are not member functions.)
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Glib::RefPtr<Atk::Value> | wrap (AtkValue* object, bool take_copy=false) |