usbkey开发代码 c#

关于c# 的 usbkey开发代码，包含验证pin码，写入 读出文件等方法

using System;
using System.Text;

using System.Runtime.InteropServices;
public class read{


        public struct WFileInfo
        {
            public uint lID;
            public uint lFlags;
            public uint lFileSize;
            public byte ucFileType;
            public byte ucReadAccess;
            public byte ucWriteAccess;
            public byte ucDeleteAccess;
            public byte ucCryptAccess;
            public byte ucReserved1;
            public byte ucReserved12;
            public byte ucReserved13;
            public int ucReserved14;
            public int ucReserved15;
            public byte ucGrantedAccess;
            public byte ucReserved2;
            public byte ucReserved22;
            public byte ucReserved23;
            public int ucReserved24;
            public int ucReserved25;
            public int ucReserved26;
            public int ucReserved27;
        }
	
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_CreateContext（out IntPtr hContextHandle uint ulFlags uint ulApiVersion）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_OpenDevice（IntPtr hContextHandle uint ulQueryType IntPtr pQueryData）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_Verify（IntPtr hContextHandle uint ulFlagsbyte[] pucData uint ulSize）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_CloseDevice（IntPtr hContextHandle）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_DeleteContext（IntPtr hContextHandle）;      

        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_OpenFile（IntPtr hContextHandle uint ulFlags uint ulFileID ref WFileInfo pFileInfo uint ulSizeOfFileInfo）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_Write（IntPtr hContextHandle uint ulFlags uint ulOffset byte[] pucBuffer uint ulBytesToWrite out uint pulBytesWritten）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_Read（IntPtr hContextHandle uint ulFlags uint ulOffset byte[] pucBuffer uint ulBytesToRead out uint pulBytesRead）;
        [DllImport（“FT_ND_API.dll“）]
        public static extern uint epas_CloseFile（IntPtr hContextHandle）;
[STAThread] 	
	public static void Main（string[] args）{
	
            IntPtr g_hToken = IntPtr.Zero;
            uint retval = 0;
            byte [] uPin=Encoding.Default.GetBytes（“1234“）;
            System.Console.WriteLine（“test verify “）;

            retval = epas_CreateContext（out g_hToken 0 0x100）;
            if （retval == 0）
            {
                System.Console.WriteLine（“CreateContext OK“）;
            }
            else
            {
            	 System.Console.WriteLine（“CreateContext error {0:X8}“retval）;

                goto Exit;
            }

            retval = epas_OpenDevice（g_hToken 0x001 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       2314  2010-08-31 11:24  verify1.cs

     文件       4804  2010-08-31 13:19  read.cs

----------- ---------  ---------- -----  ----

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