网卡,在XP 系统上能够正常(不能访问internet 和局域网),但在window2000 professional 中
不能正常(不能访问internet 但是可以访问局域网,ping不通本机IP却可以ping通其它电脑IP),
请高手指点! 或有更好的 实现方式,也请不吝赐教!DWORD DisableNetCard(void)
{
DWORD dwIfNumber;
MIB_IFROW mibIfRow;
DWORD dwResult = NO_ERROR, dwIndex; dwResult = GetNumberOfInterfaces(&dwIfNumber); if (NO_ERROR != dwResult)
{
return dwResult;
} for (dwIndex = 1; dwIndex <= dwIfNumber; dwIndex++)
{
mibIfRow.dwIndex = dwIndex;
dwResult = GetIfEntry(&mibIfRow);
if (NO_ERROR != dwResult)
{
return dwResult;
}
mibIfRow.dwAdminStatus = MIB_IF_ADMIN_STATUS_DOWN;
dwResult = SetIfEntry(&mibIfRow);
} return dwResult;
}
不能正常(不能访问internet 但是可以访问局域网,ping不通本机IP却可以ping通其它电脑IP),
请高手指点! 或有更好的 实现方式,也请不吝赐教!DWORD DisableNetCard(void)
{
DWORD dwIfNumber;
MIB_IFROW mibIfRow;
DWORD dwResult = NO_ERROR, dwIndex; dwResult = GetNumberOfInterfaces(&dwIfNumber); if (NO_ERROR != dwResult)
{
return dwResult;
} for (dwIndex = 1; dwIndex <= dwIfNumber; dwIndex++)
{
mibIfRow.dwIndex = dwIndex;
dwResult = GetIfEntry(&mibIfRow);
if (NO_ERROR != dwResult)
{
return dwResult;
}
mibIfRow.dwAdminStatus = MIB_IF_ADMIN_STATUS_DOWN;
dwResult = SetIfEntry(&mibIfRow);
} return dwResult;
}
#include "stdafx.h"
#include <tchar.h>
#include <windows.h>
#include <setupapi.h> #pragma comment (lib,"setupapi") #define UnknownDevice TEXT("<Unknown Device>") HDEVINFO hDevInfo = 0;
BOOL StateChange(DWORD NewState, DWORD SelectedItem,HDEVINFO hDevInfo)
{
SP_PROPCHANGE_PARAMS PropChangeParams = {sizeof(SP_CLASSINSTALL_HEADER)};
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};
HCURSOR hCursor; //
// This may take a while :^(
//
hCursor = SetCursor(LoadCursor(NULL, IDC_WAIT)); //
// Get a handle to the Selected Item.
//
if (!SetupDiEnumDeviceInfo(hDevInfo,SelectedItem,&DeviceInfoData))
{
printf("EnumDeviceInfo");
return FALSE;
} //
// Set the PropChangeParams structure.
//
PropChangeParams.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;
PropChangeParams.Scope = DICS_FLAG_GLOBAL;
PropChangeParams.StateChange = NewState; if (!SetupDiSetClassInstallParams(hDevInfo,
&DeviceInfoData,
(SP_CLASSINSTALL_HEADER *)&PropChangeParams,
sizeof(PropChangeParams)))
{
printf("SetClassInstallParams");
SetCursor(hCursor);
return FALSE;
} //
// Call the ClassInstaller and perform the change.
//
if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,
hDevInfo,
&DeviceInfoData))
{
printf("SetClassInstallParams");
SetCursor(hCursor);
return TRUE;
} SetCursor(hCursor);
return TRUE;
}
BOOL IsClassNet( GUID * ClassGuid )
{
#define MAX_NUM 50 HKEY hKeyClass;
LONG lRet;
char ClassType[MAX_NUM];
char NetClass[MAX_NUM] = "Net";
DWORD dwLength = MAX_NUM,dwType = REG_SZ; if (hKeyClass = SetupDiOpenClassRegKey(ClassGuid,KEY_READ))
{
lRet = RegQueryValueEx(hKeyClass,
TEXT("Class"),
NULL, &dwType, LPBYTE(ClassType), &dwLength);
RegCloseKey(hKeyClass); if (lRet != ERROR_SUCCESS)
return FALSE; if (!strcmp(ClassType,NetClass))
return TRUE;
} return FALSE;
} int main(int argc, char* argv[])
{
if (INVALID_HANDLE_VALUE == (hDevInfo =
SetupDiGetClassDevs(NULL,NULL,0,
DIGCF_PRESENT |DIGCF_ALLCLASSES)))
{
printf("GetClassDevs");
return 0;
} DWORD i, Status, Problem;
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)}; HKEY hKeyClass;
char DeviceName[200];
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&DeviceInfoData);i++)
{
if (IsClassNet(&DeviceInfoData.ClassGuid))
{
printf(" the class's index is %dn",i);
//
//DICS_DISABLE-->禁用网络
//DICS_ENABLE--->恢复网络
//
if (StateChange(DICS_ENABLE,i,hDevInfo))
printf("NetWork stopped"); }
} return 0;
}
http://community.csdn.net/Expert/topic/3951/3951994.xml?temp=.5318415