CGdiplusFileOpenDialog和CGdiplusFileSaveAsDialog类提供了一个在GDI+的MFC应用程序轻松实现文件打开和保存对话框的方法。

主要特点是：

1、它们可以动态地装入关于支持图像的解码器/编码器和构建文件过滤清单。

2、它们可以获得当前图像编码器标识码（CLSID）以供需要将其作为一个参数的GDI+函数使用。

3、它们可以检查和验证文件名和扩展名。-CGdiplusFileOpenDialog and CGdiplusFileS aveAsDialog category provided a GDI in the MFC applications easier to achieve open and save documents dialog box method. Main features are : 1, which can dynamically loaded on the support image decoder / encoder filter paper and building inventories. 2. They can present image coding device identifier (CLSID) to supply and demand to change its parameters as a letter to the GDI a few use. 3, and they can check to verify file name and extension.