Z
@zipit
Thanks for the response and for pointing out the steps. By nbit handler, I guess you are referring to the NBIT_EHIDE parameter. That's indeed a bit hefty procedure. Plug-ins are new to me. I'm guessing the need for the plug-in is for it to constantly execute Draw() and BaseDraw() method?
Yes, I was referring to the enum value NBIT_EHIDE. c4d.BaseDraw is not a method but a type which lets you draw into a view port, see here for details. Many (but not all) plugin data types (and also the Python Scripting Tag) support the implementation of a Draw() method. Cinema4D will call this method for each BaseDraw in your editor for every redraw of your document. Here is a very simple example for a python scripting tag which draws a red circle only into BaseDraws which return Perspective for GetName().
import c4d
def main():
pass #put in your code here
def draw(bd):
"""
"""
if bd.GetName() == "Perspective":
bd.SetMatrix_Screen(4)
bd.SetPen(c4d.Vector(1., 0., 0.))
bd.DrawCircle2D(100., 100., 50.)
return True