日期:2014-05-18 浏览次数:21066 次
//  ==============  常量定义 =====================
#define  ID_MAX_SIZE   8   // ID号最多8字节(64bits)
#define  MAX_LABELS   5 // 一次读写操作最多不超过5个
typedef struct tagID
{
    unsigned short  Address;    // ID号在标签内存中的地址
    unsigned short  Length;     // ID号字节数
    unsigned char   Num[MAX_LABELS][ID_MAX_SIZE];  // 存放ID号的字节数组
} ID;
//读取标签ID号
apiReturn _stdcall ReadLabelID(HANDLE hScanner, int nMax, ID *IDBuffer, int *nCounter);
[DllImport("Reader2022DLL.dll")]
unsafe public static extern UInt16 ReadLabelID(IntPtr hScanner,int nMax,ref tagID IDBuffer,ref int nCounter);
public const int  ID_MAX_SIZE=8;   // ID号最多8字节(64bits)
public const int MAX_LABELS = 5; // 一次读写操作最多不超过5个
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi,Pack=1)]
unsafe public struct tagID
{
public ushort Address;    // ID号在标签内存中的地址
public ushort Length;     // ID号字节数
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)] 
public byte [,] Num;  // 存放ID号的字节数组
};