VFP扩展功能，如发邮件、图片转换、硬件相关、网络相关、操作注册表、加密解密、文件压缩、文件操作等-VFP extensions, such as mail, image conversion, related to network-related hardware, operating the registry, encryption, file compression, file operations, etc.

电子签名，生成图片。存储位置的设置，图片的压缩。-Electronic signature, generate images. Storage location settings, image compression.