gdi+图片的通过控件按钮来实现图片大小改变，-gdi+ pictures via the control button to the picture size change

基于DirectUI封装的界面引擎库，有常用的控件，包括按钮、列表、图片控件等！还有相应的测试的Demo-DirectUI based interface engine library, a common control, including buttons, lists, pictures, etc.! And the corresponding test Demo