GalagoImage Image data. #GalagoImage represents image data, sort of like #GdkPixbuf. However, this only supports pointing to a file on disk, or the contents of the file itself. This is used for photos and avatars. This is an opaque structure representing an image. This should not be used directly. Use the accessor functions below. The D-BUS interface that #GalagoImage maps to. @filename: @Returns: @data: @len: @Returns: @image: @ret_data: @ret_len: