Public Member Functions |
virtual | ~AsyncInitable () |
GAsyncInitable* | gobj () |
| Provides access to the underlying C GObject.
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const GAsyncInitable* | gobj () const |
| Provides access to the underlying C GObject.
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| Interface (const Glib::Interface_Class& interface_class) |
| Called by constructors of derived classes.
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| Interface (GObject* castitem) |
| Called by constructors of derived classes.
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virtual | ~Interface () |
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase&value) |
| You probably want to use a specific property_*() accessor method instead.
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void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase&value) const |
| You probably want to use a specific property_*() accessor method instead.
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template<class PropertyType > |
void | set_property (const Glib::ustring& property_name, const PropertyType&value) |
| You probably want to use a specific property_*() accessor method instead.
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template<class PropertyType > |
void | get_property (const Glib::ustring& property_name, PropertyType&value) const |
| You probably want to use a specific property_*() accessor method instead.
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void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot) |
| You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API.
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sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot) |
| You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API.
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void | freeze_notify () |
| Increases the freeze count on object.
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void | thaw_notify () |
| Reverts the effect of a previous call to freeze_notify().
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virtual void | reference () const |
| Increment the reference count for this object.
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virtual void | unreference () const |
| Decrement the reference count for this object.
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GObject* | gobj_copy () const |
| Give a ref-ed copy to someone. Use for direct struct access.
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AsyncInitable - Asynchronously failable object initialization interface.
This is the asynchronous version of Initable; it behaves the same in all ways except that initialization is asynchronous. For more details see the descriptions on Initable.
A class may implement both the Initable and AsyncInitable interfaces.
Users of objects implementing this are not intended to use the interface method directly; instead it will be used automatically in various ways. For C applications you generally just call g_async_initable_new_async() directly, or indirectly via a foo_thing_new_async() wrapper. This will call g_async_initable_init_async() under the cover, calling back with NULL and a set GError on failure.
Starts asynchronous initialization of the object implementing the interface.
This must be done before any real use of the object after initial construction. If the object also implements Initable you can optionally call Gio::Initable::init() instead.
When the initialization is finished, slot will be called. You can then call init_finish() to get the result of the initialization.
Implementations may also support cancellation. Initialization can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error Gio::IO_ERROR_CANCELLED will be returned. If the object doesn't support cancellable initialization, the error Gio::IO_ERROR_NOT_SUPPORTED will be returned.
If this function is not called, or returns with an error, then all operations on the object should fail, generally returning the error Gio::IO_ERROR_NOT_INITIALIZED.
Implementations of this method must be idempotent: i.e. multiple calls to this function with the same argument should return the same results. Only the first call initializes the object; further calls return the result of the first call. This is so that it's safe to implement the singleton pattern in the GObject constructor function.
For classes that also support the Initable interface, the default implementation of this method will run the Gio::Initable::init() method in a thread, so if you want to support asynchronous initialization via threads, just implement the AsyncInitable interface without overriding any interface methods.
- Parameters:
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io_priority | The I/O priority of the operation. |
cancellable | Cancellable object to make cancellation possible. |
slot | a SlotAsyncReady to call when the request is satisfied. |
- Since glibmm 2.28: