急救，关于DLL引用问题（高手请进）

Question

typedef struct SKYETEK_READER
{
  LPSKYETEK_ID              id;
  char                      model[128];
  char                      serialNumber[128];
  char                      firmware[128];
  char                      manufacturer[128];
  char                      rid[128];
  char                      friendly[256];
  unsigned char             isBootload;
  unsigned char             sendRID;
  LPSKYETEK_PROTOCOL        lpProtocol;
LPSKYETEK_DEVICE          lpDevice;
  void                      *user;
  void                      *internal;
} SKYETEK_READER, *LPSKYETEK_READER;typedef struct SKYETEK_ID 
{
    unsigned char   *id;
    unsigned int    length;
} SKYETEK_ID, *LPSKYETEK_ID;typedef struct SKYETEK_PROTOCOL 
{
  unsigned short version;
  void *internal;
} SKYETEK_PROTOCOL, *LPSKYETEK_PROTOCOL;typedef struct SKYETEK_ID 
{
    unsigned char   *id;
    unsigned int    length;
} SKYETEK_ID, *LPSKYETEK_ID;typedef struct SKYETEK_DEVICE 
{
  char                  friendly[64];
  char                  type[64];
  char                  address[256];
  unsigned char         asynchronous;
  unsigned int          major;
  SKYETEK_DEVICE_FILE   readFD;
  SKYETEK_DEVICE_FILE   writeFD;
  void                  *user;
  void                  *internal;
} SKYETEK_DEVICE, *LPSKYETEK_DEVICE;/**
 * This discovers all of the readers to be found on the devices that
 * are passed in.
 * @param lpDevices Point to an array of devices
 * @param deviceCount Count of devices in the array
 * @param lpReaders Pointer to array to popluate.  This function will allocate memory.
 * @return Number of readers found (size of readers array) 
 */
SKYETEK_API unsigned int 
SkyeTek_DiscoverReaders(
    LPSKYETEK_DEVICE     *lpDevices, 
    unsigned int         deviceCount, 
    LPSKYETEK_READER     **lpReaders
    );

Answer 1

这些都要 转换的
转换类型 可以去参考C-C#
[StructLayout(LayoutKind.Sequential, Pack = 1)]
    public struct SetTimer_Struct
    {
        public int nVer;
        public int nTimerID;
        public int Interval;
        public string parm;
    }

Answer 2

[StructLayout(LayoutKind.Sequential)] 
public struct SKYETEK_READER
{
public SKYETEK_ID id;  //---此处应是个结构指针
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] model;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] serialNumber;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] firmware;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] manufacturer;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] rid;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=256)]   public char[] friendly;
public char isBootload;
public char sendRID;
public SKYETEK_PROTOCOL        lpProtocol; //---此处应是个结构指针
public SKYETEK_DEVICE          lpDevice; //---此处应是个结构指针
public System.IntPtr user;
public System.IntPtr internals;
}   [StructLayout(LayoutKind.Sequential)] 
public struct SKYETEK_TAG 
{
SKYETEK_TAGTYPE     type;
SKYETEK_ID        id;
public short      afi;
public short      session;
public char       rf;
[MarshalAs(UnmanagedType.ByValArray,  SizeConst=128)]   public char[] friendly;
public System.IntPtr user;
public System.IntPtr internals;
} 我已经试转了，但对结构指针转换还有疑问,请高手指点

Answer 3

typedef struct SKYETEK_READER
{
  LPSKYETEK_ID              id;
  char                      model[128];
  char                      serialNumber[128];
  char                      firmware[128];
  char                      manufacturer[128];
  char                      rid[128];
  char                      friendly[256];
  unsigned char             isBootload;
  unsigned char             sendRID;
  LPSKYETEK_PROTOCOL        lpProtocol;
LPSKYETEK_DEVICE          lpDevice;
  void                      *user;
  void                      *internal;
} SKYETEK_READER, *LPSKYETEK_READER;请高手对上面的结构来个正解