在没有文档、视结构的情况下使用打印预览，比较经典的程序，可以学习windows底层程序编写技巧.-in the absence of documentation, depending on the structure for the use of print preview, compared to the classic procedure, we can learn from the bottom windows programming skills.

在windows下MFC编程实例，可以打印及打印预览文本内容。-Under Windows MFC programming examples, can print and print preview the text content.

使用VS2012 C#语言，windows应用程序类别，利用win32 API对打印机进行监控，并实时输出打印信息到窗口-Based on VS2012 software, C#programming language. Use the win32 API monitoring the printer status, and output the imformation to the comobox