完全自绘的ComboBox ，研究界面编程时借用别人的类小试牛刀！对界面编程感兴趣的可以好好研究研究哦！-Completely self-painting the ComboBox, research programming interface borrowed knife-like test! Programming of interfaces can be of interest to study to study, oh!

对combobox控件进行重绘，实现效果： 1、对combobox上面的edit倒三角按钮进行贴图 2、对listbox也做了贴图处理。 3、有了这个版本可以稍微修改，重写OnCtlColor这个函数，这样能更好的修改listbox属性-Redraw the controls carried out to combobox, to achieve the effect: an inverted triangle button

combo Box 美化， combo box control 自定义重新绘制, combo box 控件重绘-owner draw combo box control. re-draw combo box control.