该代码是集中于一个空闲池使用管理器的CWnd继承控件，该管理器可以帮助我们减少在特定UI场景中GDI资源的使用。为了在运行中演示这些类，我已经在此提供了一个MDI应用示例，它只是让你来打开XML文件。每个XML文件为单个MDI子窗体定义了布局和UI控件属性。尽管代码是用VC6写的，示例项目也可以被转换为VS 2003 和VS 2005项目。-The code is focused on the use of a leisure pool manager of CWnd inherited control, the manager can help us to reduce the UI in a particular scene the use of GDI resources. Demonstrated in order to run these classes, I have provided in this example of a MDI application, it just allows you to open the XML file. XML file for each individual sub-MDI form defines the layout and UI control attributes. Although the code is written in VC6, sample projects can also be converted to VS 2003 and VS 2005 project.