# Object Hierarchy

        GObject
            GtkTextBuffer
                GtkSourceBuffer
            GInitiallyUnowned
                GtkSourceCompletionContext
                GtkWidget
                    GtkContainer
                        GtkBin
                            GtkWindow
                                GtkSourceCompletionInfo
                        GtkTextView
                            GtkSourceView
                GtkSourceGutterRenderer
                    GtkSourceGutterRendererPixbuf
                    GtkSourceGutterRendererText
            GtkSourceCompletion
            GtkSourceCompletionItem
            GtkSourceCompletionWords
            GtkSourceGutter
            GtkSourceLanguage
            GtkSourceLanguageManager
            GtkSourceMarkAttributes
            GtkTextMark
                GtkSourceMark
            GtkSourcePrintCompositor
            GtkSourceSearchContext
            GtkSourceSearchSettings
            GtkSourceStyle
            GtkSourceStyleScheme
            GtkSourceStyleSchemeManager
        GInterface
            GtkSourceCompletionProposal
            GtkSourceCompletionProvider
            GtkSourceUndoManager