C# winfrom 调dll中的含有结构体记录

在C#中定义结构体

//解析的结构体
        [StructLayout(LayoutKind.Sequential)]
        public struct license_output_data_t
        {
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 100)]
            public byte[] OnlyCode;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 50)]
            public byte[] LicenceName;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 100)]
            public byte[] AddrName;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 50)]
            public byte[] SerialNum;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)]
            public byte[] EquipmentType;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)]
            public byte[] SoftName ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
            public byte[] SoftVersion ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)]
            public byte[] CompanyName ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
            public byte[] Email ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
            public byte[] Phone ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 50)]
            public byte[] CompanyPerson ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
            public byte[] Effective ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
            public byte[] DateTimeField ;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
            public byte[] VersionType ;

        }

引用DLL

 [DllImport("licdecode.dll",EntryPoint = "get_license_file_info", CallingConvention = CallingConvention.StdCall)]
        public unsafe static extern int get_license_file_info(out license_output_data_t license_data);

调用成功 转换为UTF-8

 Encoding.UTF8.GetString(license_data.SoftVersion)

调用

 int z = get_license_file_info(out license_data);

突然记起来需要写个记录，不然以后遇到这类似的问题，又焦头烂额的，当时想的一些问题都忘记的差不多了，以后要养成随时写记录的习惯