How to create something like Expander control in WPF using only WinAPI (ATL/WTL)?

I am newbie in English, sorry :) How to create something like Expander control in WPF using only WinAPI (ATL/WTL)? Are some experince avaliabl开发者_StackOverflow社区e? Thank for answers!

Not sure how the Expander control looks but there is a good collection of WTL widgets available here. It might get you started - there is some very cool code available.

You can build something rather similar from WTL::CPaneContainerImpl<> (in atlctrlx.h). Not ready out of the box though.