Document EExtensible and EExtension.

The mechanism here is simple but hard to explain without leaning heavily
on object-oriented jargon.  Consider this a rough draft.  Illustrations
would certainly help clarify.

1 files changed, 6 insertions, 0 deletions

diff --git a/e-util/e-extension.h b/e-util/e-extension.h
index 905ef412f3..e9eee64a62 100644
--- a/e-util/e-extension.h
+++ b/e-util/e-extension.h
@@ -47,6 +47,12 @@ typedef struct _EExtension EExtension;
 typedef struct _EExtensionClass EExtensionClass;
 typedef struct _EExtensionPrivate EExtensionPrivate;
 
+/**
+ * EExtension:
+ *
+ * Contains only private data that should be read and manipulated using the
+ * functions below.
+ **/
 struct _EExtension {
 	GObject parent;
 	EExtensionPrivate *priv;