Classes Hierarchy
GObject
Gio.SimpleActionGroup
GObject.InitiallyUnowned
Gtk.Widget
Gtk.Container
Gtk.Bin
Gtk.Window
Gtk.Dialog
Gtk.ListBoxRow
Gtk.ToolItem
Gtk.ToolButton
ToolDrawer
Gtk.ScrolledWindow
Gtk.Box
Gtk.InfoBar
Editor
MessageActions
Gtk.ListBox
Gtk.TextView
Gtk.Toolbar
Gtk.Misc
Gtk.Label
Gtk.TextBuffer
HtmlRenderer
SimpleAttachment
Gtk.TextTag
Gtk.TextTagTable