Can an Archicad add-on and a GSM object communicate with each other? I simply need the GSM to check the state of a variable in the (C++) add-on, and vice-versa.
You can set parameter states in a GDL, so I think this should cover this part.
And obviously reading a parameter should be possible, too.
But of course this is not a real "communication", as you just can't trigger something in an Add-On in GDL or its UI.