说明：  在工程文件中包含IconComboBox.cpp和IconComboBox.h。 在资源编辑器中，创建一个一般的组合框，并设置它具有下面风格： DropList, OwnerDraw Variable, Has Strings。 用ClassWizard创建一个控件成员变量。 替换CComboBox为CIconComboBox。
(In the project file contains IconComboBox.cpp and IconComboBox.h. Editor in terms of resources, create a normal combo box and set it with the following styles: DropList, OwnerDraw Variable, Has Strings. Use ClassWizard to create a control member variable. CComboBox replacement for CIconComboBox.)