GObject
  GAppLaunchContext
    GdkAppLaunchContext
  GdkClipboard
  GdkContentDeserializer
  GdkContentProvider
  GdkContentSerializer
  GdkCursor
  GdkDevice
  GdkDeviceTool
  GdkDisplay
  GdkDisplayManager
  GdkDrag
  GdkSurface
  GdkDrop
  GdkFrameClock
  GdkDrawContext
    GdkGLContext
    GdkVulkanContext
  GdkTexture
    GdkGLTexture
    GdkMemoryTexture
  GdkMonitor
  GdkSeat
  GdkSnapshot
GInterface
  GTypePlugin
  GAsyncResult
  GdkDevicePad
  GdkDragSurface
  GdkPaintable
  GdkPopup
  GdkToplevel
  GInitable
  GAppInfo
GBoxed
  GValueArray
  GdkContentFormats
  GdkPopupLayout
  GdkRGBA
  GdkToplevelLayout
  GdkRectangle
  CairoRectangleInt
  CairoRegion
  GStrv
GdkEvent
