2 accel-group -- complete (except some functions which are probably not very useful)
4 accel-map -- complete (except some functions which are probably not very useful)
6 adjustment -- done throught introspection
8 arrow -- done throught introspection
9 aspect-frame -- done throught introspection
13 button-box -- done throught introspection
15 cell-layout -- complete
16 check-button -- done throught introspection
17 check-menu-item -- complete
18 color-button -- done throught introspection
19 color-selection -- complete minus palette
20 color-selection-dialog -- complete
21 combo-box -- complete (up to gtk version 2.4)
22 combo-box-entry -- complete
25 drawing-area -- done throught introspection
28 entry-completion -- complete
29 event-box -- done throught introspection
30 expander -- done throught introspection
31 file-chooser -- complete
32 file-chooser-button -- done throught introspection (but the dialog property should be readable)
33 file-chooser-dialog -- done throught introspection
34 file-chooser-widget -- done throught introspection
35 file-filter -- complete
38 font-button -- done throught introspection
39 font-selection -- complete
41 handle-box -- complete
42 h-box -- done throught introspection
43 h-button-box -- done throught introspection
44 h-paned -- done throught introspection
45 h-ruler -- done throught introspection
46 h-scale -- done throught introspection
47 h-scrollbar -- done throught introspection
48 h-separator -- done throught introspection
50 image-menu-item -- complete
57 list-store -- complete
59 menu-bar -- done throught introspection
61 menu-shell -- complete
62 menu-tool-button -- complete
63 message-dialog -- done (up to gtk version 2.4)
67 progess-bar -- complete
68 radio-button -- complete
69 radio-menu-item -- complete
70 radio-tool-button -- complete
74 scrollbar -- done throught introspection
75 scrolled-window -- complete
76 separator -- done throught introspection
77 separator-menu-item -- done throught introspection
78 separator-tool-item -- done throught introspection
79 size-group -- complete
81 spin-button -- complete
83 stock-item -- complete
85 tearoff-menu-item -- done throught introspection
86 text-buffer -- complete but the API may change
89 text-tag -- complete minus text-attributes
90 text-tag-table -- complete
92 toggle-button -- done throught introspection
93 toggle-tool-button -- complete
96 tool-item -- complete (except initialize-instance)
98 tree-store -- complete
99 viewport -- done throught introspection
100 v-box -- done throught introspection
101 v-button-box -- done throught introspection
102 v-paned -- done throught introspection
103 v-ruler -- done throught introspection
104 v-scale -- done throught introspection
105 v-scrollbar -- done throught introspection
106 v-separator -- done throught introspection
107 widget -- complete (more or less)
109 window-group -- complete