* name <literal>t_n ## _default_init</literal>, and the interface
* structure to have the name <literal>TN ## Interface</literal>.
*
- * Since: 2.20
+ * Since: 2.24
*/
#define G_DEFINE_INTERFACE(TN, t_n, T_P) G_DEFINE_INTERFACE_WITH_CODE(TN, t_n, T_P, ;)
* G_DEFINE_TYPE_EXTENDED() for a similar example using
* G_DEFINE_TYPE_WITH_CODE().
*
- * Since: 2.20
+ * Since: 2.24
*/
#define G_DEFINE_INTERFACE_WITH_CODE(TN, t_n, T_P, _C_) _G_DEFINE_INTERFACE_EXTENDED_BEGIN(TN, t_n, T_P) {_C_;} _G_DEFINE_INTERFACE_EXTENDED_END()