此文档为VB公共模块，封了多数常用的API，方便VB开发人员调用。包括注册表操作、磁盘、网络、窗体、文件等操作的API。模块内有简单使用说明。-this document for public VB module, the most commonly used letters of API to facilitate VB developers call. Including the registry operation, disk, network, forms, documents, etc

Birt report object model－－layout modle