C# byte[]、struct、intptr等的相互转换

最新推荐文章于 2025-06-05 09:41:43 发布

转载最新推荐文章于 2025-06-05 09:41:43 发布 · 2.2k 阅读

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#c#

本文介绍了如何在C#中实现struct类型与byte[]之间的相互转换，并提供了详细的代码示例。此外还展示了IntPtr与byte[]之间的转换方法。

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1.struct byte[]互相转换


 //struct转换为byte[]
        public static byte[] StructToBytes(object structObj)
        {
            int size = Marshal.SizeOf(structObj);
            IntPtr buffer = Marshal.AllocHGlobal(size);
            try
            {
                Marshal.StructureToPtr(structObj, buffer, false);
                byte[] bytes = new byte[size];
                Marshal.Copy(buffer, bytes, 0, size);
                return bytes;
            }
            finally
            {
                Marshal.FreeHGlobal(buffer);
            }
        }

        //byte[]转换为struct
        public static object BytesToStruct(byte[] bytes, Type type)
        {
            int size = Marshal.SizeOf(type);
            IntPtr buffer = Marshal.AllocHGlobal(size);
            try
            {
                Marshal.Copy(bytes, 0, buffer, size);
                return Marshal.PtrToStructure(buffer, type);
            }
            finally
            {
                Marshal.FreeHGlobal(buffer);
            }
        }

2.Intptr、byte[]互相转换

//IntPtr转byte[]

IntPtr y;//初始化 略
byte[] ys = new byte[yLength];
Marshal.Copy(y, ys, 0, yLength);

//byte[]转换为Intptr
        public static Intptr BytesToIntptr(byte[] bytes)
        {
            int size = bytes.Length;
            IntPtr buffer = Marshal.AllocHGlobal(size);
            try
            {
                Marshal.Copy(bytes, 0, buffer, size);
                return buffer;
            }
            finally
            {
                Marshal.FreeHGlobal(buffer);
            }
        }

至于struct和Intptr转换，完全可以参考上面的函数