How to dock a toolwindow by code in a VSPACKAGE

Question

I'm trying to force a ToolWindow into the right docking area without success using :

windowFrame.SetFramePos(VSSETFRAMEPOS.SFP_fDockRight, ref viewGuid,  0, 0, 0, 0);

But I found out on MSDN that SFP_fDockRight, SFP_fDockLeft and SFP_fDockRight are now obsolete. MSDN doesn't says what to use instead.

I know we can use the registry to specify the ToolWindow's initial position but I need to do it every time in the code. I'm also interested to know if there's a way to do it using Add-ins.

thanks.