About IsPrinting property

In a lot of my GoObject classes, IsPrinting property of GoView is used to hide some graphs only during printing. For example, I need to fill shapes in GoObjects only on screen, but not for printing.
I’m using DevExpress printing system to print GoDiagram graph.
Basically I need call PrintView of GoView with a Graphics object generated from an EMF file. This EMF file is used by DevExpress printing system to do the real printing. So I did not use Print in GoView.
However, even if I call PrintView(not PaintView), IsPrinting property is still false. So How can I set the IsPrinting property to be true to hide some graphs only during printing?

You’ll have to override GoView.IsPrinting to have it be true when you want it to be.

Good idea, thanks