The root figure properties are:
__modified__"on", "off"
__myhandle__
beingdeleted"on", "off"
busyaction
buttondownfcn
callbackobject
children
clipping"on", "off"
createfcn
currentfigure
deletefcn
handlevisibility"on", "off"
hittest"on", "off"
interruptible"on", "off"
parent
screendepth
screenpixelsperinch
screensize
selected
selectionhighlight
screendepth
screenpixelsperinch
showhiddenhandles"on", "off"
tag
type
uicontextmenu
units
userdata
visible