使用TWAIN读取扫描仪的图像。In Windows imaging applications, the most used API for scanning is TWAIN www.twain.org. Unfortunately, the new .NET Framework has no built-in support for TWAIN. So we have to work with the interop methods of .NET to access this API. T

TwainGui用于C# winform 控制便携打印机，出票机-TwainGui for WinForm C# control portable printer, the ticket machine