Appendix A, The Class Hierarchy
The super/sub class hierarchy:
cosmic
generic
field
client
socket
TTY
dial
FCard
GIF
menu
pane
hpane
vpane
project
radio
rubber
slider
stack
tray
txt
txtButton
txtDisp
txtLabel
HTML
txtEdit
XBM
XBMButton
XPM
XPMButton
See also:
Chapter 3, About Objects
Appendix B, Reference for Each Classes