ObjectClass

The class structure for the GObject type.

<example> <title>Implementing singletons using a constructor</title> <programlisting> static MySingleton *the_singleton = NULL;

static GObject* my_singleton_constructor (GType type, guint n_construct_params, GObjectConstructParam *construct_params) { GObject *object;

if (!the_singleton) { object = G_OBJECT_CLASS (parent_class)->constructor (type, n_construct_params, construct_params); the_singleton = MY_SINGLETON (object); } else object = g_object_ref (G_OBJECT (the_singleton));

return object; } </programlisting></example>

class ObjectClass {

protected

GObjectClass* gObjectClass;

protected

bool ownedRef;

GObjectClass* getObjectClassStruct(bool transferOwnership);

void* getStruct();

this(GObjectClass* gObjectClass, bool ownedRef);

ParamSpec findProperty(string propertyName);

void installProperties(ParamSpec[] pspecs);

void installProperty(uint propertyId, ParamSpec pspec);

ParamSpec[] listProperties();

void overrideProperty(uint propertyId, string name);

}

Constructors

this this(GObjectClass* gObjectClass, bool ownedRef): Sets our main struct and passes it to the parent class.

Members

Functions

findProperty ParamSpec findProperty(string propertyName): Looks up the #GParamSpec for a property of a class.
getObjectClassStruct GObjectClass* getObjectClassStruct(bool transferOwnership): Get the main Gtk struct
getStruct void* getStruct(): the main Gtk struct as a void*
installProperties void installProperties(ParamSpec[] pspecs): Installs new properties from an array of #GParamSpecs.
installProperty void installProperty(uint propertyId, ParamSpec pspec): Installs a new property.
listProperties ParamSpec[] listProperties(): Get an array of #GParamSpec* for all properties of a class.
overrideProperty void overrideProperty(uint propertyId, string name): Registers @property_id as referring to a property with the name @name in a parent class or in an interface implemented by @oclass. This allows this class to "override" a property implementation in a parent class or to provide the implementation of a property from an interface.

Variables

gObjectClass GObjectClass* gObjectClass;: the main Gtk struct
ownedRef bool ownedRef;: Undocumented in source.

ObjectClass

Constructors

Members

Functions

Variables

Meta

Source