[Gambas-user] Gambas2 Grab in Gambas3

[Richard Welch]

I need a simple way to copy the current image in a visible DrawingArea 
to a hidden PictureBox.

The project was written in Gambas2, where a simple Grab method did the 
trick, but in G3 this does something different so the converted code 
does not function fully.

FMain.pbxPicture.W = FMain.drwRep.W
FMain.pbxPicture.H = FMain.drwRep.H
FMain.pbxPicture.Background = FMain.drwRep.Background
FMain.pbxPicture.Picture = FMain.drwRep.Grab()

With what do I replace the Grab method?

(The DrawingArea is painted in many different pieces of code, depending 
on context, so I want to make the change which will have the smallest 
impact possible on the source code)

There is a gambas-user thread started around 19 April 2012.
Is this fully relevant?
Is this the /simplest/ answer?
It would need some very tedious testing in my context.....