vc常用源码.htm

Hex转换成CString

      取得开始菜单或桌面的PIDL<BR>SHGetSpecialFolderLocation(AfxGetApp()-&gt;m_pMainWnd-&gt;m_hWnd,CSIDL_DESKTOP,&amp;pidlBeginAt) 
      ;<BR>// 取得新建文件夹的父文件夹<BR>if( !BrowseForFolder(pidlBeginAt , 
      <BR>&amp;pidlDestination,<BR>"请选择图片目录的位置："))<BR>{<BR>return ;<BR>}<BR>// 
      把PIDL转换为路径名<BR>SHGetPathFromIDList( pidlDestination, szPath); 
      <BR>//添加如下函数<BR>BOOL BrowseForFolder(<BR>LPITEMIDLIST 
      pidlRoot,//浏览开始处的PIDL<BR>LPITEMIDLIST 
      *ppidlDestination,<BR>//浏览结束时所选择的PIDL<BR>LPCSTR 
      lpszTitle)//浏览对话框中的提示文字<BR>{ <BR>BROWSEINFO BrInfo ;<BR>ZeroMemory( 
      &amp;BrInfo, sizeof(BrInfo)) ;<BR>BrInfo.hwndOwner = HWND_DESKTOP 
      ;<BR>BrInfo.pidlRoot = pidlRoot ;<BR>BrInfo.lpszTitle = lpszTitle 
      ;<BR>//浏览文件夹<BR>*ppidlDestination= 
      SHBrowseForFolder(&amp;BrInfo);<BR>//用户选择了取消按钮<BR>if(NULL == 
      *ppidlDestination)<BR>return FALSE ;/**/<BR>return TRUE ;<BR>}</FONT></P>
      <P><FONT color=#006633 
      size=2>//读写INI/ini文件*************************************************</FONT></P>
      <P><FONT color=#006633 size=2>//写入值 字段名 变量名 值 带目录文件名 
      <BR>WritePrivateProfileString("目录","path",cs, regpath);<BR>//写入结构体 字段名 变量名 
      值 大小 
      带目录文件名<BR>WritePrivateProfileStruct("字体","font",&amp;LF,sizeof(LOGFONT),regpath);//结构体<BR>//读入字符 
      字段名 变量名 默认值 字符缓冲区 长度 带目录文件名 <BR>GetPrivateProfileString("目录","path","", 
      buffer.GetBuffer(260),260,regpath);<BR>//读入整数值 字段名 变量名 默认值 
      带目录文件名<BR>GetPrivateProfileInt("colors","red",255, regpath);<BR>//读入结构体 
      字段名 变量名 值 大小 带目录文件名 
      <BR>GetPrivateProfileStruct("字体","font",&amp;LF,sizeof(LOGFONT),regpath);</FONT></P>
      <P><FONT color=#006633 
      size=2>//位图操作，画图*****************************************************</FONT></P>
      <P><FONT color=#006633 size=2>CClientDC client(this);<BR>BITMAP 
      bmpInfo;<BR>CDC memdc;<BR>CBitmap 
      picture;<BR>memdc.CreateCompatibleDC(pdc);<BR>memdc.SelectObject(&amp;picture);<BR>CRect 
      re;<BR>GetClientRect(&amp;re);<BR>client.BitBlt(0,0,bmpInfo.bmWidth,bmpInfo.bmHeight,&amp;memdc,0,0,SRCCOPY);<BR>client.SetBkMode(TRANSPARENT);<BR>client.SetTextColor(RGB(red,green,blue));<BR>CFont 
      font;<BR>CFont 
      *oldfont;<BR>font.CreateFontIndirect(&amp;LF);<BR>oldfont=client.SelectObject(&amp;font);<BR>client.DrawText("",//注意这个字符串里如果只有一连串的字母或数字，没有空格或中文或标点符号，且总长度超过距形宽度，则不能自动换行!!<BR>&amp;re,DT_CENTER 
      |DT_WORDBREAK);<BR>client.SelectObject(oldfont);</FONT></P>
      <P><FONT color=#006633 
      size=2>//打开EXE/exe文件**********************************************</FONT></P>
      <P><FONT color=#006633 size=2>ShellExecute(GetSafeHwnd(),<BR>"open", 
      <BR>"http://home.jlu.edu.cn/~ygsoft",//改这个文件名就可以了<BR>NULL,<BR>NULL,SW_SHOWNORMAL);<BR>//or<BR>LPITEMIDLIST 
      pidlBeginAt;<BR>// 
      取得桌面的PIDL<BR>SHGetSpecialFolderLocation(AfxGetApp()-&gt;m_pMainWnd-&gt;m_hWnd,<BR>CSIDL_DRIVES//这个标志为我的电脑<BR>,&amp;pidlBeginAt) 
      ;<BR>SHELLEXECUTEINFO 
      exe;<BR>ZeroMemory(&amp;exe,sizeof(SHELLEXECUTEINFO));<BR>exe.cbSize=sizeof(SHELLEXECUTEINFO);<BR>exe.fMask=SEE_MASK_IDLIST;<BR>exe.lpVerb="open";<BR>exe.nShow=SW_SHOWNORMAL;<BR>exe.lpIDList=pidlBeginAt;<BR>ShellExecuteEx(&amp;exe);</FONT></P>
      <P><FONT color=#006633 
      size=2>//取得函数不能正常返回的原因字符***************************</FONT></P>
      <P><FONT color=#006633 size=2>LPVOID lpMsgBuf;<BR>FormatMessage( 
      <BR>FORMAT_MESSAGE_ALLOCATE_BUFFER | <BR>FORMAT_MESSAGE_FROM_SYSTEM | 
      <BR>FORMAT_MESSAGE_IGNORE_INSERTS,<BR>NULL,<BR>GetLastError(),<BR>MAKELANGID(LANG_NEUTRAL, 
      SUBLANG_DEFAULT), // Default language<BR>(LPTSTR) 
      &amp;lpMsgBuf,<BR>0,<BR>NULL <BR>);<BR>// Process any inserts in 
      lpMsgBuf.<BR>// ...<BR>// Display the 
      string.<BR>MessageBox((LPCTSTR)lpMsgBuf);<BR>// Free the 
      buffer.<BR>LocalFree( lpMsgBuf );</FONT></P>
      <P><FONT color=#006633 
      size=2>//关机函数************************************************</FONT></P>
      <P><FONT color=#006633 size=2>void ShutDown(void)//2000 OR 
      NT<BR>{<BR>OSVERSIONINFO osv;<BR>osv.dwOSVersionInfoSize=sizeof 
      OSVERSIONINFO;<BR>GetVersionEx(&amp;osv);<BR>if(osv.dwPlatformId==VER_PLATFORM_WIN32_NT)//VER_PLATFORM_WIN32_WINDOWS 
      98 Me用这个宏<BR>{<BR>HANDLE hProcess,hToken;<BR>TOKEN_PRIVILEGES 
      Privileges;<BR>LUID 
      luid;<BR>hProcess=GetCurrentProcess();<BR>OpenProcessToken(hProcess,TOKEN_ADJUST_PRIVILEGES,&amp;hToken);<BR>Privileges.PrivilegeCount=1;<BR>LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&amp;luid);<BR>Privileges.Privileges[0].Luid=luid;<BR>Privileges.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;<BR>AdjustTokenPrivileges(hToken,FALSE,&amp;Privileges,NULL,NULL,NULL);<BR>}<BR>ExitWindowsEx(EWX_POWEROFF,0);<BR>}</FONT></P>
      <P><FONT color=#006633 
      size=2>//***************************************</FONT></P>
      <P><FONT color=#006633 size=2>//创建一个非模态对话框，如 <BR>//1声明父对话框<BR>#include 
      "Tx.h"<BR>//2在头文件中改为CTx* pParent = NULL，并声明CTx 
      *tx;<BR>public:<BR>CInputmr(CTx* pParent = NULL); // standard 
      constructor<BR>CTx *tx;<BR>//3在CPP文件中改为CTx* pParent 
      /*=NULL*/，并声明ID：CDialog(CInputmr::IDD, 
      pParent)和tx(pParent)<BR>CInputmr::CInputmr(CTx* pParent /*=NULL*/)<BR>: 
      CDialog(CInputmr::IDD, 
      pParent),tx(pParent)<BR>{<BR>if(Create(CInputmr::IDD,pParent))//创建<BR>ShowWindow(SW_SHOW);//显示窗口<BR>//就可以使用 
      tx-&gt; 了<BR>}</FONT></P>
      <P></P>
      <P><BR><FONT color=#006633 
      size=2>常用网络数据包报头结构-&gt;以太网、ARP、IP、TCP、UDP、ICMP、DNS、UDP伪报头***************************************</FONT></P>
      <P><FONT color=#006633 size=2>#pragma pack(1) <BR>typedef struct ethdr 
      //以太网包头14字节<BR>{<BR>unsigned char destination_mac[6];//目标MAC 
      6字节<BR>unsigned char source_mac[6];//源MAC 6字节<BR>unsigned short 
      type;//后面的协议类型2字节 为0806表示后面跟的包为ARP包<BR>}ET_HEADER,*PETHDR;</FONT></P>
      <P><FONT color=#006633 size=2>typedef struct arphdr 
      //arp协议28字节<BR>{<BR>unsigned short hard_tpye;//硬件类型2字节 通常为01 
      (以太网地址)<BR>unsigned short protocol;//协议类型2字节 通常为80 (IP地址)<BR>unsigned char 
      hard_length;//硬件地址长度1字节 通常为6<BR>unsigned char protocol_length;//协议地址长度1字节 
      通常为4 (IP协议)<BR>unsigned short operation_type;//操作类型 
      1为ARP请求，2为ARP应答，3为RARP请求，4为RARP应答<BR>unsigned char 
      source_mac[6];//源物理地址<BR>struct in_addr source_ip;//源IP地址<BR>unsigned char 
      destination_mac[6];//目的物理地址<BR>struct in_addr 
      destination_ip;//目的IP地址<BR>}ARP_HEADER,*PARPHDR;</FONT></P>
      <P><FONT color=#006633 size=2><BR>// IP Header -- RFC 791 
      IP数据报头<BR>typedef struct tagIPHDR<BR>{<BR>u_char VIHL; // Version and IHL 
      版本4bit = 4 和 首部长度4bit = 5<BR>u_char TOS; // Type Of Service 服务类型 
      1字节<BR>short TotLen; // Total Length 总长度2字节，包括数据和报头<BR>short ID; // 
      Identification 标识符2字节<BR>short FlagOff; // Flags and Fragment Offset 标志 
      3bit 和分段偏移量 13bit<BR>u_char TTL; // Time To Live 
      生存期1字节，为经过路由器的总次数<BR>u_char Protocol; // Protocol 协议类型1字节<BR>u_short 
      Checksum; // Checksum 首部(只是IP首部!!不然就错了，过不了网关!!)校验和2字节<BR>struct in_addr 
      source_ip; // Internet Address - Source 源IP地址<BR>struct in_addr 
      destination_ip; // Internet Address - Destination 目的IP地址<BR>}IP_HEADER, 
      *PIP_HEADER;</FONT></P>
      <P><FONT color=#006633 size=2>//TCP Header TCP数据报头<BR>typedef struct 
      tcp_hdr<BR>{<BR>unsigned short source_port; //源端口<BR>unsigned short 
      destination_port; //目的端口<BR>unsigned long index; //32位序号<BR>unsigned long 
      makesuer_index; //32位确认序号<BR>unsigned short header_length_and_flags; 
      //首部长度和标志位<BR>unsigned short window_size; //窗口大小<BR>unsigned short 
      checksum; //检查和<BR>unsigned short exigency_pointer; 
      //紧急指针<BR>}TCP_HEADER;</FONT></P>
      <P><FONT color=#006633 size=2>//UDP Header --UDP数据报头</FONT></P>
      <P><FONT color=#006633 size=2>typedef struct udp_hdr<BR>{<BR>unsigned 
      short source_port; //源端口<BR>unsigned short destination_port; 
      //目的端口<BR>unsigned short length; //数据长度<BR>unsigned short checksum; 
      //带数据!检查和<BR>} UDP_HEADER;</FONT></P>
      <P><FONT color=#006633 size=2><BR>// ICMP Header - RFC 792 
      ICMP数据报头<BR>typedef struct tagICMPHDR<BR>{<BR>u_char Type; // Type 
      类型<BR>u_char Code; // Code 代码<BR>u_short Checksum; // Checksum 
      校验和<BR>u_short ID; // Identification 标识符<BR>u_short Seq; // Sequence 
      序列号<BR>char Data; // Data 数据(依情况而定)<BR>}ICMP_HEADER, 
      *PICMP_HEADER;</FONT></P>
      <P><FONT color=#006633 size=2><BR>// ICMP Echo Request ICMP 
      请求数据报<BR>typedef struct tagECHOREQUEST<BR>{<BR>ICMPHDR icmpHdr;<BR>DWORD 
      dwTime;<BR>char cData[32];<BR>}IMCP_REQUEST, *PIMCP_REQUEST;</FONT></P>
      <P><FONT color=#006633 size=2><BR>// ICMP Echo Reply ICMP 回响数据报<BR>typedef 
      struct tagECHOREPLY<BR>{<BR>IPHDR ipHdr;<BR>ECHOREQUEST 
      echoRequest;<BR>char cFiller[256];<BR>}ICMP_REPLY, *ICMP_REPLY;</FONT></P>
      <P><FONT color=#006633 size=2><BR>typedef struct dns 
      //DNS数据报：<BR>{<BR>unsigned short 
      id;//标识，通过它客户端可以将DNS的请求与应答相匹配；<BR>unsigned short flags;//标志：[QR | opcode | 
      AA| TC| RD| RA | zero | rcode ]<BR>unsigned short 
      quests;//问题数目；<BR>unsigned short answers;//资源记录数目；<BR>unsigned short 
      author;//授权资源记录数目；<BR>unsigned short 
      addition;//额外资源记录数目；<BR>}DNS,*PDNS;<BR>//在16位的标志中：QR位判断是查询/响应报文，opcode区别查询类型，AA判断是否为授权回答，TC判断<BR>//是否可截断，RD判断是否期望递归查询，RA判断是否为可用递归，zero必须为0，rcode为返回码字段。</FONT></P>
      <P><FONT color=#006633 size=2>typedef struct psd 
      //伪报头，用于计算UDP校验和<BR>{<BR>unsigned int source_ip; //源IP<BR>unsigned int 
      destination_ip; //目的IP<BR>char mbz; // 0<BR>char protocol; //协议 UDP = 
      17<BR>unsigned short udp_length; //UDP 长度<BR>}PSD,*PPSD;</FONT></P>
      <P><FONT color=#006633 size=2>//DNS查询数据报：<BR>typedef struct 
      query<BR>{<BR>unsigned short type; //查询类型，大约有20个不同的类型<BR>unsigned short 
      classes; //查询类,通常是A类既查询IP地址。<BR>}QUERY,*PQUERY;</FONT></P>
      <P><FONT color=#006633 size=2>//DNS响应数据报：<BR>typedef struct 
      response<BR>{<BR>unsigned short name; //查询的域名<BR>unsigned short type; 
      //查询类型<BR>unsigned short classes; //类型码<BR>unsigned int ttl; 
      //生存时间<BR>unsigned short length; //资源数据长度<BR>unsigned int addr; 
      //资源数据<BR>}RESPONSE,*PRESPONSE;</FONT></P>
      <P><FONT color=#006633 size=2>#pragma pack()<BR></FONT></P>
      <P><FONT color=#006633 
      size=2>网络编程部分源码-&gt;校验和、隐藏IP方法、取得本地MAC********************************</FONT></P>
      <P><FONT color=#006633 size=2>//注意!!!!!! 
      <BR>//IP的检查和只是IP头部的20个字节，不然过不了网关!!!!<BR>//而TCP和UDP和检查和是数据和头部都包括!!<BR>//在计算检查和之前IP或UDP或TCP报头中 
      所有的成员 必须被初始化，包括 checksum!!!</FONT></P>
      <P><FONT color=#006633 
      size=2><BR>//为了保证系统和机器的******兼容性******，在定义网络结构体或共用体时要加上<BR>#pragma