23box1 = 
canvas.Draw[RBox](RPadPos(0.1, 0.1), RPadPos(0.3, 0.6))
 
   29box2 = 
canvas.Draw[RBox](RPadPos(0.4, 0.2), RPadPos(0.6, 0.7))
 
   36box3 = 
canvas.Draw[RBox](RPadPos(0.7, 0.4), RPadPos(0.9, 0.6))
 
   41box4 = 
canvas.Draw[RBox](RPadPos(0.7, 0.7), RPadPos(0.9, 0.9))
 
   44box5 = 
canvas.Draw[RBox](RPadPos(0.7, 0.1), RPadPos(0.9, 0.3))
 
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.