VC++在Tree树控菜单中加入图像功能，也就是在树控形菜单的某一项菜单内容的前面添加一个小图片，添加合适的图片会让树控件菜单更专业，提升用户体验，操作更方便一些。-VC++ the Tree tree control menu image function is to add a small picture in front of a tree control shaped menu menu content, add the right image will make the tree co