映射網際網路共用資源為本地硬碟

#include "stdafx.h"#include <windows.h>#include <stdio.h>#include <winnetwk.h>#pragma comment(lib, "mpr.lib")//添加映射DWORD AddConnection(LPCTSTR szRemoteName, LPCTSTR szLocalname){  //  // Assign values to the NETRESOURCE structure.  //  NETRESOURCE nr = {0};  nr.dwType = RESOURCETYPE_ANY;  nr.lpLocalName = (LPTSTR)szLocalname;  nr.lpRemoteName = (LPTSTR)szRemoteName;//  //  // Call the WNetAddConnection2 function to assign  //   a drive letter to the share.  //  DWORD dwResult = WNetAddConnection2(&nr, NULL, NULL, 0);  //  // If the call succeeds, inform the user; otherwise,  //  print the error.  //  if(dwResult != NO_ERROR)  {    #define caseErr(x) case(x): { printf(#x "\n"); break;  }    switch(dwResult)    {      caseErr(ERROR_ACCESS_DENIED); //The caller does not have access to the network resource.      caseErr(ERROR_ALREADY_ASSIGNED); //The local device specified by the lpLocalName member is already connected to a network resource.      caseErr(ERROR_BAD_DEV_TYPE); //The type of local device and the type of network resource do not match.      caseErr(ERROR_BAD_DEVICE); //The value specified by lpLocalName is invalid.      caseErr(ERROR_BAD_NET_NAME); //The value specified by the lpRemoteName member is not acceptable to any network resource provider, either because the resource name is invalid, or because the named resource cannot be located.      caseErr(ERROR_BAD_PROFILE); //The user profile is in an incorrect format.      caseErr(ERROR_BAD_PROVIDER); //The value specified by the lpProvider member does not match any provider.      caseErr(ERROR_BUSY); //The router or provider is busy, possibly initializing. The caller should retry.      caseErr(ERROR_CANCELLED); //The attempt to make the connection was canceled by the user through a dialog box from one of the network resource providers, or by a called resource.      caseErr(ERROR_CANNOT_OPEN_PROFILE); //The system is unable to open the user profile to process persistent connections.      caseErr(ERROR_DEVICE_ALREADY_REMEMBERED); //An entry for the device specified by lpLocalName is already in the user profile.      caseErr(ERROR_EXTENDED_ERROR); //A network-specific error occurred. Call the WNetGetLastError function to obtain a description of the error.      caseErr(ERROR_INVALID_PASSWORD); //The specified password is invalid and the CONNECT_INTERACTIVE flag is not set.      caseErr(ERROR_NO_NET_OR_BAD_PATH); //The operation cannot be performed because a network component is not started or because a specified name cannot be used.      caseErr(ERROR_NO_NETWORK); //The network is unavailable.      caseErr(ERROR_BAD_NETPATH); //The network path was not found.    default:      {        printf("Error: %ld\n", dwResult);      }    }   }  return dwResult;}//斷開映射DWORD CancelConnection(LPCTSTR szLocalname){  DWORD dwResult;   // Call the WNetCancelConnection2 function, specifying  //  that the connection should no longer be a persistent one.  //  dwResult = WNetCancelConnection2(szLocalname,     CONNECT_UPDATE_PROFILE, // remove connection from profile     FALSE);                 // fail if open files or jobs   // Process errors.  //  The device is not a local redirected device.  //  if (dwResult == ERROR_NOT_CONNECTED)   {   }  // Call an application-defined error handler.  //  else if(dwResult != NO_ERROR)   {     #define caseErr(x) case(x): { printf(#x "\n"); break;  }    switch(dwResult)    {       caseErr(ERROR_BAD_PROFILE);//The user profile is in an incorrect format.      caseErr(ERROR_CANNOT_OPEN_PROFILE);//The system is unable to open the user profile to process persistent connections.      caseErr(ERROR_DEVICE_IN_USE);//The device is in use by an active process and cannot be disconnected.      caseErr(ERROR_EXTENDED_ERROR);//A network-specific error occurred. To obtain a description of the error, call the WNetGetLastError function.      caseErr(ERROR_NOT_CONNECTED);//The name specified by the lpName parameter is not a redirected device, or the system is not currently connected to the device specified by the parameter.      caseErr(ERROR_OPEN_FILES);//There are open files, and the fForce parameter is FALSE.    default:      {        printf("Error: %ld\n", dwResult);      }    }  }  else  {    printf("Connection closed for %s.", szLocalname);   }  return dwResult;}int _tmain(int argc, _TCHAR* argv[]){  AddConnection(_T("\\\\192.168.0.66\\SharedDocs"), _T("Q:"));  CancelConnection(_T("Q:"));  return 0;}