How to create a windowless control after implementing all the necessary interfaces?

[followait]

for example, if all the necessary interfaces for a windowless control is implemented as below, how to create the control on a dialog, and let it working properly?

class my_ctl : public IOleInPlaceObjectWindowless, public IOleInPlaceSiteWindowless, public IViewObjectEx
{
...
}

Thanks in advance. BTW, I want it be as simple as possible, just let it work.