Не удалось вызвать родной dll - PullRequest
1 голос
/ 28 мая 2011
Trying to use the command dll (c + +) project to c #
Structure dll
typedef struct {
SSP_FULL_KEY Key;
unsigned long BaudRate;
unsigned long Timeout;
unsigned char PortNumber;
unsigned char SSPAddress;
unsigned char RetryLevel;
unsigned char EncryptionStatus;
unsigned char CommandDataLength;
unsigned char CommandData [255];
unsigned char ResponseStatus;
unsigned char ResponseDataLength;
unsigned char ResponseData [255];
unsigned char IgnoreError;
} SSP_COMMAND;

typedef struct {
unsigned __int64 FixedKey;
unsigned __int64 EncryptKey;
} SSP_FULL_KEY;

Вот код, который я включил

public struct SSP_FULL_KEY
    {
        long FixedKey;
        long EncryptKey;
        public SSP_FULL_KEY (long fix, long encr)
        {
            FixedKey = fix;
            EncryptKey = encr;
        }

    }
    public struct SSP_COMMAND
    {
        / / String PortNumber;
        SSP_FULL_KEY key;
        long BaudRate; / / baud rate of the packet
        long Timeout; / / how long in ms to wait for a reply from the slave
        string PortNumber; / / the serial com port number of the host
        string SSPAddress; / / the SSP address of the slave
        string RetryLevel; / / how many retries to the slave for non-response
        string EncryptionStatus; / / is this an encrypted command 0 - No, 1 - Yes
        string CommandDataLength; / / Number of bytes in the command
        string [] CommandData; / / Array containing the command bytes
        string ResponseStatus; / / Response Status (PORT_STATUS enum)
        string ResponseDataLength; / / how many bytes in the response
        string [] ResponseData; / / an array of response data
        string IgnoreError; / / flag to suppress error box (0 - display, 1 - suppress)

        public SSP_COMMAND (string comport)
        {
            BaudRate = 9600;
            Timeout = 500;
            PortNumber = comport;
            RetryLevel = "5";
            IgnoreError = "0";
            EncryptionStatus = "0";
            CommandData = new string [255];
            ResponseData = new string [255];
            ResponseStatus = "0";
            ResponseDataLength = "0";
            SSPAddress = "0";
            CommandDataLength = "0";
            key = new SSP_FULL_KEY (0123456701234567, 0123456701234567);

        }
    }

    class Program
    {

        / / [DllImport ("ITLSSPProc.dll")]
        / / Private static extern int OpenSSPComPort (IntPtr smd);

        [DllImport ("ITLSSPProc.dll")]

        private static extern int OpenSSPComPort (SSP_COMMAND cmd);

        static void Main (string [] args)
        {
            SSP_COMMAND cmd = new SSP_COMMAND ("6");
            / * IntPtr.BaudRate = 9600;
            IntPtr.PortName = "COM0";
            IntPtr.Parity = Parity.None;
            IntPtr.StopBits = StopBits.One;

            * /
            Console.WriteLine (OpenSSPComPort (cmd));





        }

Comes out an error
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
UPDATE
Remade, still the same error</p>

<code>public unsafe struct SSP_FULL_KEY
    {
        System.Int64 FixedKey;
        System.Int64 EncryptKey;
        public SSP_FULL_KEY(System.Int64 fix, System.Int64 encr)
        {
            FixedKey = fix;
            EncryptKey = encr;
        }

    }
    public unsafe struct SSP_COMMAND
    {
        //string PortNumber;
        SSP_FULL_KEY key;
        System.Int64 BaudRate; // baud rate of the packet
        System.Int64 Timeout; // how long in ms to wait for a reply from the slave
        string PortNumber; // the serial com port number of the host
        string SSPAddress; // the SSP address of the slave
        string RetryLevel; // how many retries to the slave for non-response
        string EncryptionStatus; // is this an encrypted command 0 - No, 1 - Yes
        string CommandDataLength; // Number of bytes in the command
        fixed char CommandData[255]; // Array containing the command bytes
        string ResponseStatus; // Response Status (PORT_STATUS enum)
        string ResponseDataLength; // how many bytes in the response
        fixed char ResponseData[255]; // an array of response data
        string IgnoreError; // flag to suppress error box (0 - display,1- suppress)

        public SSP_COMMAND(string comport)
        {
            BaudRate = 9600;
            Timeout = 500;
            PortNumber = comport;
            RetryLevel = "5";
            IgnoreError = "0";
            EncryptionStatus = "0";
            ResponseStatus = "0";
            ResponseDataLength = "0";
            SSPAddress = "0";
            CommandDataLength = "0";
            key = new SSP_FULL_KEY(0123456701234567, 0123456701234567);

        }
    }
</code>

1 Ответ

1 голос
/ 28 мая 2011

Вы правильно превратили __int64 в C # long.

А потом вы хотите и также превратили long BaudRate и long Timeout в C # long, но это неправильно, это 32-битные переменные.

Лучше всего забыть, что тип long когда-либо существовал (что касается взаимодействия), потому что он всегда добавляет путаницу. Просто используйте System.Int64 и System.Int32 в зависимости от ситуации.

Ваши строки также неверны, они являются встроенными массивами символов в C ++, что означает, что вам нужно будет использовать атрибуты в C # или иначе a fixed массив .

...