Evolution-Data-Server Manual: Backend Utilities (libebackend) | ||||
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Top | Description | Object Hierarchy | Properties |
Synopsis
#include <libebackend/libebackend.h>
struct EExtension;
EExtensible * e_extension_get_extensible (EExtension *extension
);
Description
EExtension provides a way to extend the functionality of objects that implement the EExtensible interface. EExtension subclasses can target a particular extensible object type. New instances of an extensible object type get paired with a new instance of each EExtension subclass that targets the extensible object type.
The first steps of writing a new extension are as follows:
1. Subclass EExtension.
2. In the class initialization function, specify the GType being extended. The GType must implement the EExtensible interface.
3. Register the extension's own GType. If the extension is to
be loaded dynamically using GTypeModule, the type should be
registered in the library module's e_module_load()
function.
Details
struct EExtension
struct EExtension;
Contains only private data that should be read and manipulated using the functions below.
Since 3.4
e_extension_get_extensible ()
EExtensible * e_extension_get_extensible (EExtension *extension
);
Returns the object that extension
extends.
|
an EExtension |
Returns : |
the object being extended |
Since 3.4
Property Details
The "extensible"
property
"extensible" EExtensible* : Read / Write / Construct Only
The object being extended.