Marshal.GetActiveObject "Grasshopper": Possible?

Scripting
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1

Hello
Using this we can get data from opened Excel file, can we do the same with Grasshopper?

import System
from System.Runtime.InteropServices import Marshal
excel = Marshal.GetActiveObject("Excel.Application")

I tried this but didn’t work:

rhino = Marshal.GetActiveObject("Rhin7.Application")

grasshopper = Marshal.GetActiveObject("Rhin7.Grasshopper.Document")

2

Marshal.GetActiveObject works only on COM objects.

It may work for Rhinoceros but definitely not for Grasshopper. Grasshopper is a .NET library and doesn’t expose COM visibility correctly IIRC.

2 Likes
3

Hi @anon39580149,

If you want to hook into a running Rhino, get a Rhino.Interface object. Otherwise, get a Rhino.Application object.

– Dale

1 Like
4

Hi @dale , thank you
Sadly the same error message

image

5

Are you trying to fetch a Rhino instance inside Rhino (say Grasshopper’s Python component)?

6

No this is just a confirmation , i tried first in an external Ironpython