转换c++；API结构到c# 我试图把C++ API实例转换成C语言。但是我无法通过struct具有字符串类型的方式在struct中找到struct指针的方式。这里是C++结构和函数< /p> struct AuthParam { char server_ip[32]; char username[50]; char password[50]; }; struct CameraInfo { int index; char devicename[100]; char smallrtsp[1000]; char bigrtsp[1000]; }; struct SingleDevice { char deviceid[50]; char devicename[100]; int flag_onuse; int cameralist_size; CameraInfo* cameralist; }; struct DeviceList { int listsize; SingleDevice* singledevicelist; }; typedef int (WINAPI capi_init)(void); typedef int (WINAPI capi_disabled)(void); typedef int (WINAPI capi_GetServerTimeCode)(char* server_ip, unsigned int* timecode); typedef int (WINAPI GetDevicelist)(AuthParam auth_para, DeviceList* devicelist);

这是我的c#代码，但我找不到在我得到的结构中定义结构指针的方法” 错误CS0208无法获取托管类型的地址、大小或声明指向托管类型的指针（'Form1.CameraInfo'）”错误

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有没有办法实现这一转变

> P>我认为这个错误是因为C++（un托管代码）和C托管代码（托管代码）的不同性质，所以可能使用Sturn.ItpTR作为指针指向Struts结构。

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请考虑这个问题，你可以找到哪个是一个开源工具，用来将代码从非托管代码转换为托管C代码。在一篇关于

的小博客文章中，也许该行应该是

public ref SingleDevice SingleDevice

？或者您可以使用

IntPtr

作为指针。

public struct AuthParam
        {
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
            public string server_ip;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
            public string username;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
            public string password;
        };

        [StructLayout(LayoutKind.Sequential)]
        public struct CameraInfo
        {
            public int index;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 100)]
            public string devicename;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1000)]
            public string smallrtsp;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1000)]
            public string bigrtsp;
        };

        [StructLayout(LayoutKind.Sequential)]
        public struct SingleDevice
        {
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 50)]
            public string deviceid;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 100)]
            public string devicename;
            public int flag_onuse;
            public int cameralist_size;

            public CameraInfo *cameralist;
        };

        [StructLayout(LayoutKind.Sequential)]
        public unsafe struct DeviceList
        {
            public int listsize;
            public SingleDevice *singledevicelist;
        };

[DllImport("c:\\lib\\api_client.dll")] public static extern int capi_init();
        [DllImport("c:\\lib\\api_client.dll")] public static extern int capi_disabled();
        [DllImport("c:\\lib\\api_client.dll")] public static extern int capi_GetServerTimeCode(string ip, ref uint timecode);
        [DllImport("c:\\lib\\api_client.dll")] public static extern int GetDevicelist (AuthParam auth_para,ref  DeviceList devicelist);