gimp_image_get_thumbnail ()

GdkPixbuf *
gimp_image_get_thumbnail (gint32 image_ID,
                          gint width,
                          gint height,
                          GimpPixbufTransparency alpha);

Since: GIMP 2.2

gimp_drawable_get_thumbnail ()

GdkPixbuf *
gimp_drawable_get_thumbnail (gint32 drawable_ID,
                             gint width,
                             gint height,
                             GimpPixbufTransparency alpha);

Since: GIMP 2.2

gimp_drawable_get_sub_thumbnail ()

GdkPixbuf *
gimp_drawable_get_sub_thumbnail (gint32 drawable_ID,
                                 gint src_x,
                                 gint src_y,
                                 gint src_width,
                                 gint src_height,
                                 gint dest_width,
                                 gint dest_height,
                                 GimpPixbufTransparency alpha);

Since: GIMP 2.2

enum GimpPixbufTransparency