我想写一程序检测网络中的计算机,并得到各个计算机的ip,该怎么实现,望各位大虾给指点高招,谢谢!!!
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BOOL CListenDlg::Enumerate(LPNETRESOURCE lpNetRC_p, int depth)
{
HANDLE hEnum = 0;
DWORD dwScope = RESOURCE_GLOBALNET;
DWORD dwType = RESOURCETYPE_ANY;
DWORD dwResult = WNetOpenEnum(dwScope,dwType,0,lpNetRC_p,&hEnum);
if(dwResult != NO_ERROR)
return false;
DWORD dwBuffer = 16384;
DWORD dwEntries = -1;
LPNETRESOURCE lpnrLocal = 0;
BOOL bRet = TRUE;
do
{
lpnrLocal = (LPNETRESOURCE)GlobalAlloc(GPTR,dwBuffer);
dwResult = WNetEnumResource(hEnum,&dwEntries,lpnrLocal,&dwBuffer);
if(dwResult == NO_ERROR)
{
for(DWORD i =0; i < dwEntries ; i++)
{
CString nsname;
nsname = lpnrLocal[i].lpRemoteName;
CString remotename = nsname; if( strcmp(remotename.Left(2),"\\") )
remotename = remotename.Right(remotename.GetLength()-2); for(int j=0;j<namevector.size();j++)
{
if(namevector.at(j) == remotename)
break;
}
hostent FAR* lpHostEnt = gethostbyname(remotename);
CString remoteip;
if(lpHostEnt != NULL)
{
LPSTR lpAddr = lpHostEnt->h_addr_list[0];
in_addr inAddr;
memmove(&inAddr,lpAddr,4);
remoteip = inet_ntoa(inAddr);
}
nsname += " ";
nsname += remoteip; if(depth ==1)
{
// ((CListCtrl*)GetDlgItem(IDC_LIST1))->InsertItem(0,nsname);
}
else if(depth == 2)
{
namevector.push_back(nsname);
ipvector.push_back(remoteip);
((CListCtrl*)GetDlgItem(IDC_LIST1))->InsertItem(0,nsname);
((CListCtrl*)GetDlgItem(IDC_LIST1))->SetItemText(0,1,"0");
((CListCtrl*)GetDlgItem(IDC_LIST1))->SetItemText(0,2,"0");
}
if(RESOURCEUSAGE_CONTAINER == (lpnrLocal[i].dwUsage & RESOURCEUSAGE_CONTAINER))
if(depth<=1 && !Enumerate(&lpnrLocal[i],depth+1))
{
}
}
}
else
{
if(dwResult != ERROR_NO_MORE_ITEMS)
return FALSE;
}
}
while(dwResult != ERROR_NO_MORE_ITEMS);
if(lpnrLocal)
GlobalFree((HGLOBAL)lpnrLocal);
WNetCloseEnum(hEnum);
return bRet;
}
namevector是一个CString的数组,保存了网络上每台机器的用户名加ip地址 你自己分析一下吧
调用的时候直接Enumerate(0,0)就可以了
G++ + GCC is perfect
namevector是什么变量?
如果楼主要的话,留下邮箱!
vector<CString> ipvector 保存计算机名相应的ip
谢谢了!
Email:[email protected] To nkwesley(江南丝竹):
可以发一下吗!!!!谢谢
应该怎么定义:
是不是:CString namevector;但是有错也。
vector<CString> namevector是什么意思?
vector是标准模板库中的 这样定义的namevector是一个大小可变的数组
需要加头文件
#include <vector>
using namespace std;
#include <iostream>
#include <vector>
using namespace std; vector<CString> namevector; //加在类成员变量里BOOL CYourClass::Enumerate(LPNETRESOURCE lpNetRC_p, int depth)
{
HANDLE hEnum = 0;
DWORD dwScope = RESOURCE_GLOBALNET;
DWORD dwType = RESOURCETYPE_ANY;
DWORD dwResult = WNetOpenEnum(dwScope,dwType,0,lpNetRC_p,&hEnum);
if(dwResult != NO_ERROR)
return false;
DWORD dwBuffer = 16384;
DWORD dwEntries = -1;
LPNETRESOURCE lpnrLocal = 0;
BOOL bRet = TRUE;
do
{
lpnrLocal = (LPNETRESOURCE)GlobalAlloc(GPTR,dwBuffer);
dwResult = WNetEnumResource(hEnum,&dwEntries,lpnrLocal,&dwBuffer);
if(dwResult == NO_ERROR)
{
for(DWORD i =0; i < dwEntries ; i++)
{
CString nsname;
nsname = lpnrLocal[i].lpRemoteName;
CString remotename = nsname; if( strcmp(remotename.Left(2),"\\") )
remotename = remotename.Right(remotename.GetLength()-2); for(int j=0;j<namevector.size();j++)
{
if(namevector.at(j) == remotename)
break;
}
hostent FAR* lpHostEnt = gethostbyname(remotename);
CString remoteip;
if(lpHostEnt != NULL)
{
LPSTR lpAddr = lpHostEnt->h_addr_list[0];
in_addr inAddr;
memmove(&inAddr,lpAddr,4);
remoteip = inet_ntoa(inAddr);
}
nsname += " ";
nsname += remoteip; if(depth ==1)
{
}
else if(depth == 2)
{
namevector.push_back(nsname);
//ipvector.push_back(remoteip);
}
if(RESOURCEUSAGE_CONTAINER == (lpnrLocal[i].dwUsage & RESOURCEUSAGE_CONTAINER))
if(depth<=1 && !Enumerate(&lpnrLocal[i],depth+1))
{
}
}
}
else
{
if(dwResult != ERROR_NO_MORE_ITEMS)
return FALSE;
}
}
while(dwResult != ERROR_NO_MORE_ITEMS);
if(lpnrLocal)
GlobalFree((HGLOBAL)lpnrLocal);
WNetCloseEnum(hEnum);
return bRet;
}调用如下:void YouEvent()
{
Enumerate(0,0);
for(int i = 0; i< namevector.size(); ++i)
{
cout<<namevector.at(i)<<endl;
}
}
The WNetOpenEnum function starts an enumeration of network resources or existing connections. DWORD WNetOpenEnum(
DWORD dwScope, // scope of enumeration
DWORD dwType, // resource types to list
DWORD dwUsage, // resource usage to list
LPNETRESOURCE lpNetResource,
// pointer to resource structure
LPHANDLE lphEnum // pointer to enumeration handle buffer
);
Parameters
dwScope
Specifies the scope of the enumeration. This parameter can be one of the following values: Value Meaning
RESOURCE_CONNECTED All currently connected resources (the dwUsage parameter is ignored).
RESOURCE_CONTEXT Only resources in the network context of the caller (used for a Network Neighborhood view). The dwUsage parameter is ignored.
RESOURCE_GLOBALNET All resources on the network.
RESOURCE_REMEMBERED All remembered (persistent) connections (the dwUsage parameter is ignored).
dwType
Specifies the resource types to enumerate. This parameter can be a combination of the following values: Value Meaning
RESOURCETYPE_ANY All resources (this value cannot be combined with RESOURCETYPE_DISK or RESOURCETYPE_PRINT).
RESOURCETYPE_DISK All disk resources.
RESOURCETYPE_PRINT All print resources.
If a network provider cannot distinguish between print and disk resources, it may enumerate all resources. dwUsage
Specifies the resource usage to be enumerated. This parameter can be a combination of the following values: Value Meaning
0 All resources
RESOURCEUSAGE_CONNECTABLE All connectable resources
RESOURCEUSAGE_CONTAINER All container resources
This parameter is ignored if the dwScope parameter is not RESOURCE_GLOBALNET. lpNetResource
Points to a NETRESOURCE structure specifying the container to enumerate.
If this parameter is NULL, the root of the network is assumed. Windows organizes a network as a hierarchy; the root is the topmost container in the network. If this parameter is not NULL, it must point to a NETRESOURCE structure. This structure can be filled in by the application or be returned by a call to the WNetEnumResource function. The NETRESOURCE structure must specify a container resource; that is, the RESOURCEUSAGE_CONTAINER value must be specified in the dwUsage member. To enumerate all network resources, an application can begin the enumeration by calling WNetOpenEnum with lpNetResource set to NULL and then use the returned handle with WNetEnumResource to enumerate resources. If one of the resources in the NETRESOURCE array returned by the WNetEnumResource function is a container resource, WNetOpenEnum can be used to open the resource for further enumeration. If the dwScope parameter is not RESOURCE_GLOBALNET, this parameter must be NULL. lphEnum
Points to a variable filled with an enumeration handle that can be used in a subsequent call to WNetEnumResource.
Return Values
If the function succeeds, the return value is NO_ERROR. If the function fails, the return value is an error code. To get extended error information, callGetLastError. GetLastError may return one of the following error codes: Value Meaning
ERROR_NOT_CONTAINER The lpNetResource parameter does not point to a container.
ERROR_INVALID_PARAMETER Either the dwScope or dwType parameter is invalid, or there is a bad combination of parameters.
ERROR_NO_NETWORK No network is present.
ERROR_EXTENDED_ERROR A network-specific error occurred. To get a description of the error, use the WNetGetLastError function.
The function returns error codes for compatibility with Windows version 3.1. For compatibility with Windows NT, the function also sets the error code value returned byGetLastError. Res
The exact interpretation of RESOURCE_CONTEXT in the dwScope parameter depends on the networks installed on the machine.The WNetOpenEnum function is used to begin enumeration of the resources in a single container. The following examples show the hierarchical structure of a Microsoft LAN Manager network and a Novell Netware network: LanMan (container, in this case the provider)
ACCOUNTING (container, in this case the domain)
\\ACCTSPAY (container, in this case the server)
PAYFILES (disk)
LASERJET (print)
Netware (container, in this case the provider)
MARKETING (container, in this case the server)
SYS (disk, first one on any Netware server)
ANOTHERVOLUME (disk)
LASERJET (print)
Windows CE: The WNetOpenEnum function is called by the network browser application to create lists of available resources on the network. Windows CE does not support the predefined value of RESOURCE_CONTEXT because a device cannot belong to a specific network context.QuickInfo
Windows NT: Use version 3.1 or later.
Windows: Use Windows 95 or later.
Windows CE: Use version 2.0 or later.
Header: Declared in winnetwk.h.
Import Library: Use mpr.lib.See Also
Windows Networking (WNet) Overview, Windows Networking Functions, NETRESOURCE, WNetCloseEnum, WNetEnumResource, WNetGetLastError
{
}
中的Enumerate是什么?有错误!!
你需要包含这个头文件
#include "WINNETWK.H"
EMAIL:[email protected]
是不是写对了!!!
哥们,可以发给我点源码吗?我该的总是出错!!!搞不对,谢谢了!!!