[Closed] Get ActiveShade Render?

I tried several ways, but it returns the viewport as out of range.

Exception: – Runtime error: viewport.activeViewport index out of range <<

also the “grab viewport” is greyed out when active shade is running.

So I would think that it’s not possible with the usual way’s of grabbing a viewport.

I needed it with Vray and there is a function for this

vrayGetRTBitmap()