The purpose of MFC WindowStyler is to allow users to experiment creating windows with different window styles and extended window styles, WS_styles and WS_EX_styles, with out having to recompile
MFC WindowStyler的目的是让用户试验用不同的风格(和扩展风格)创建窗口, WS_styles 和WS_EX_styles,不必重新编译。
来源: http://www.codeguru.com/misc/WindowStyler.shtml