一个自绘 很酷的（三种状态）CTreeCtrl 控件

一个实现CTreeCtrl自绘的简单类，可帮助初学控件自绘的人入门-A realization of a simple owner-draw CTreeCtrl class to help beginners who control entry from the painting

自绘CTreeCtrl控件，添加按钮功能，模仿360界面 因为工作需要，自绘了CTreeCtrl控件，里面实现了按钮的功能(Because the work needs, since painted the CTreeCtrl control, which implements the button function)