本篇文章为大家展示了C#中怎么通过调用Windows API托管对象，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。
C#中调用Windows API实例下面：
FileStream fs = new FileStream( "a.txt", FileMode.Open ); StringBuilder buffer = new StringBuilder( 5 ); int read = 0; ReadFile(fs.Handle, buffer, 5, out read, 0 ); //调用Win API中的ReadFile函数由于fs是托管对象，所以有可能在平台调用还未完成时候被垃圾回收站回收。将文件流的句柄用HandleRef包装后，就能避免被垃圾站回收:
[ DllImport( "Kernel32.dll" )] public static extern bool ReadFile( HandleRef hndRef, StringBuilder buffer, int numberOfBytesToRead, out int numberOfBytesRead, ref Overlapped flag ); ...... ...... FileStream fs = new FileStream( "HandleRef.txt", FileMode.Open ); HandleRef hr = new HandleRef( fs, fs.Handle ); StringBuilder buffer = new StringBuilder( 5 ); int read = 0; // platform invoke will hold //reference to HandleRef until call ends ReadFile( hr, buffer, 5, out read, 0 );上述内容就是C#中怎么通过调用Windows API托管对象，你们学到知识或技能了吗？如果还想学到更多技能或者丰富自己的知识储备，欢迎关注编程网行业资讯频道。
