I assume you mean that you're not using WPF,
but WinForms. Both can be used by C#
programs (and in fact, any CLR programs, so that
includes C#, VB.NET, C++/CLR, and so many more
In WinForms I don't think that's supported, so
you might have to be creative and do it
WPF does support it on the other hand.
P.S. The documentation you linked is for WPF.
The how-to is indeed in the link you offered.
P.P.S imo you should use WPF (like,
always. Unless you simply can't) - that's actually