C#回调函数及API应用浅析

复制//Class1.cs   using System;   // 该名称空间包含了在Visual C#中调用API的一些必要集合   using System.Runtime.InteropServices;   // 使用Sleep方法需要的命名空间   using System.Threading;   namespace CMPPAPI_Sample_CSharp   {   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public struct CMPP_HEAD   {   public uint nTotalLength;   public uint nCommandId;   public uint nSeqId;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public struct CMPP_CONNECT   {   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 6)]   public string sSourceAddr;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]   public string sAuthSource;   public byte cVersion;   public uint nTimeStamp;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public　struct CMPP_CONNECT_RESP   {   public byte uchStatus;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]   public string sAuthISMG;   public byte cVersion;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public　struct CMPP_SUBMIT_RESP   {   public long nMsgid;   public byte uchResult;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public　struct CMPP_STATUS_REPORT   {   public long nMsgid;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 7)]   public string sStat;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 10)]   public string sSubmitTime;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 10)]   public string sDoneTime;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 21)]   public string sDestTerminalId;   public uint nSmscSeq;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public　struct CMPP_MO_MSGCONTENT   {   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 160)]   public string sMsgcontent;   public CMPP_STATUS_REPORT csr;   }   [StructLayout(LayoutKind.Sequential, Pack = 1)]   public　struct CMPP_DELIVER   {   public long　nMsgid;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 21)]   public string sDestid;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 10)]   public string sServiceid;   public byte　uchTppid;   public byte　uchTpudhi;   public byte　uchMsgfmt;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 21)]   public string sSrcterminalid;   public byte　uchRegisteredDelivery;   public byte　uchMsglength;   public CMPP_MO_MSGCONTENT mo_msg;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]   public string sReserved;   }  1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81.82.83.84.85.86.87.88.89.90.