In the below link, there is an example on process-starting Inventor. I have converted to Visual Basic, modified it slightly and used it to prevent the Inventor application from continuing to run invisibly after closing. It has worked for a long time. But now fails on the line with invDoc.Parent.MainFrameHWND.
Dim i As Integer
i = invDoc.Parent.MainFrameHWND
https://adndevblog.typepad.com/manufacturing/2016/06/access-a-specific-inventorapplication-object.ht...
Does anyone know what I need to do? I use Inventor 2021.
