After posting on the Redshift forum I got some help from one of the admins there. Although he could not help me finding out if an interactive render is running he had a great tip regarding finding if a render is currently running. His suggestion was to check for the MSG_MULTI_RENDERNOTIFICATION and that works really well including when rendering on the commandline.

Hi Riccardo,

Thanks for your reply. I cant get c4d.GeGetVersionType() to work the way I expect it. I was thinking of output-ing it to a text object for testing purposes. That should than show me a different number when rendering depending on whether it's in the application or through the commandline. Both return 2.

Furthermore most of the constants I would be checking against don't resolve in R20 but do in R21. Is this command changed significantly in R21? We're still using R20.

I'm trying so set up something that will switch between low resolution proxies during interactive sessions and the high resolution model when rendering. We are rendering with Redshift.
What I've got going is based on this: Thread 10877

I have added 2 layers to my scene. One containing the proxy objects ("Lyr_PROXY") the other("Lyr_HQ") holding the full resolution models. On a null object there is a python-tag with the following code:

import c4d

def main():
    global render
    obj =  op.GetObject()
    status = obj[c4d.ID_BASEOBJECT_GENERATOR_FLAG]
    ON_list =  obj[c4d.ID_USERDATA, 1] #use 1 for the first user data
    OFF_list =  obj[c4d.ID_USERDATA, 2]#use 2 for the second user data

    if c4d.threading.GeIsMainThread()==False:
        the_thread = c4d.threading.GeGetCurrentThread()
        if c4d.threading.IdentifyThread(the_thread) ==  c4d.THREADTYPE_RENDEREXTERNAL:
            render = True
        elif c4d.threading.IdentifyThread(the_thread) == c4d.THREADTYPE_NONE:
            render = True
        elif  c4d.threading.IdentifyThread(the_thread) == c4d.THREADTYPE_RENDEREDITOR:
            render = True
        else: render = False
 
    layer_object_root =  doc.GetLayerObjectRoot()
    layers = layer_object_root.GetChildren()
    setting_proxy =  bool(int(not render) * int(status))
    setting_hq = bool(int(render) + int(not status))
    for layer in layers:
        if layer.GetName() == "Lyr_PROXY":
            layer.SetLayerData(doc,{ 'view':setting_proxy, 'render':setting_proxy, 'generators':setting_proxy, 'animation':setting_proxy })
        if layer.GetName() == "Lyr_HQ":
            layer.SetLayerData(doc,{ 'view':setting_hq, 'render':setting_hq, 'generators':setting_hq, 'animation':setting_hq })

This works when doing a bucket render to the pictureviewer or to the redshift renderviewer but not when doing interactive renders in the redshift renderview. It would be nice if this would work aswell but more importantly it also doesn't work when doing commandline renders with deadline. How do I know it's doing a commandline rendering? Or any other way of render with redshift?
I've looked at "4d.CheckIsRunning()" but that doesn't seem to be the answer.

Thanks. Bart

Thanks Sebastian.

I'm working on an alignment tool and I need to know if the user is currently manipulating edges, vertices or face or is in object mode.
Is there a way to query the current mode state with python? So i want to know which of these buttons is selected.
l)