悬赏以百分请教如何禁用网卡，Win2K/Win98

ccc_wh 2002-10-24 03:49:17

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simpledevelop 2003-03-30

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niaosuy 2003-03-28

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Mark

xiaoyaolili 2003-03-21

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不错，学一学。我也正好有些需要呢！
借个东风，谢了！

huangbeyond 2003-03-17

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ccc_wh 2002-10-27

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谢谢 flyboycsdn(飞仔) ，这几天没能上网，所以到今天才看到，也谢谢各位的参与，呵呵

用户　昵称 2002-10-25

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masterz说得对
让大家都学学

vcsongs 2002-10-25

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用setupdi... 禁用网卡?

masterz 2002-10-25

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to flyboycsdn:
can you post your code here? so that others can learn it too.

flyboycsdn 2002-10-25

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如果你想要原程序的话，留下你的email地址
我做过一个禁用启用设备（网卡）com组件
可参看windows ddk的文档。

zhenyuwzy 2002-10-25

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1.拆开机箱，拨了网卡，它想用也用不了
2.如果是整合网卡，可以在BIOS里面设置禁用
3.不想拔网卡的话，在设备管理器中打开网卡的属性，在“在此硬件配置文件中禁用”打勾

flyboycsdn 2002-10-25

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（续上）
×××××××××××××××××××××××××××××
BOOL CHardware::IsClassHidden(GUID *ClassGuid)
{
BOOL bHidden = FALSE;
HKEY hKeyClass;

//
// If the devices class has the NoDisplayClass value then
// don't display this device.
//
if (hKeyClass = SetupDiOpenClassRegKey(ClassGuid,KEY_READ))
{
bHidden = (RegQueryValueEx(hKeyClass,
REGSTR_VAL_NODISPLAYCLASS,
NULL, NULL, NULL, NULL) == ERROR_SUCCESS);
RegCloseKey(hKeyClass);
}

return bHidden;
}

BOOL CHardware::ConstructDeviceName(HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA DeviceInfoData, PVOID Buffer, PULONG Length)
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_DRIVER ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_DEVICEDESC ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_CLASS ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_CLASSGUID ,
Buffer,
Length))
{
*Length = (_tcslen(UnknownDevice)+1)*sizeof(TCHAR);
Buffer =(char *)malloc(*Length);
_tcscpy(*(LPTSTR *)Buffer,UnknownDevice);
}
}
}

}

return TRUE;
}

BOOL CHardware::GetRegistryProperty(HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA DeviceInfoData, ULONG Property, PVOID Buffer, PULONG Length)
{
while (!SetupDiGetDeviceRegistryProperty(DeviceInfoSet,
DeviceInfoData,
Property,
NULL,
(BYTE *)*(TCHAR **)Buffer,
*Length,
Length
))
{

if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
//
// We need to change the buffer size.
//
if (*(LPTSTR *)Buffer)
LocalFree(*(LPTSTR *)Buffer);
*(LPTSTR *)Buffer = (PCHAR)LocalAlloc(LPTR,*Length);
}
else
{
//
// Unknown Failure.
//

return FALSE;
}
}

return (*(LPTSTR *)Buffer)[0];

}

BOOL CHardware::StateChange(DWORD NewState, DWORD SelectedItem, HDEVINFO hDevInfo)
{
SP_PROPCHANGE_PARAMS PropChangeParams = {sizeof(SP_CLASSINSTALL_HEADER)};
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};

//
// Get a handle to the Selected Item.
//
if (!SetupDiEnumDeviceInfo(hDevInfo,SelectedItem,&DeviceInfoData))
{

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)))
{

return FALSE;
}

//
// Call the ClassInstaller and perform the change.
//
if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,
hDevInfo,
&DeviceInfoData))
{

return TRUE;
}

return TRUE;
}

BOOL CHardware::IsDisabled(DWORD SelectedItem, HDEVINFO hDevInfo)
{
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};
DWORD Status, Problem;

//
// Get a handle to the Selected Item.
//
if (!SetupDiEnumDeviceInfo(hDevInfo,SelectedItem,&DeviceInfoData))
{

return FALSE;
}

if (CR_SUCCESS != CM_Get_DevNode_Status(&Status, &Problem,
DeviceInfoData.DevInst,0))
{

return FALSE;
}

return ((Status & DN_HAS_PROBLEM) && (CM_PROB_DISABLED == Problem)) ;
}

BOOL CHardware::IsDisableable(DWORD SelectedItem, HDEVINFO hDevInfo)
{
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};
DWORD Status, Problem;

//
// Get a handle to the Selected Item.
//
if (!SetupDiEnumDeviceInfo(hDevInfo,SelectedItem,&DeviceInfoData))
{

return FALSE;
}

if (CR_SUCCESS != CM_Get_DevNode_Status(&Status, &Problem,
DeviceInfoData.DevInst,0))
{

return FALSE;
}

return ((Status & DN_DISABLEABLE) &&
(CM_PROB_HARDWARE_DISABLED != Problem));
}

STDMETHODIMP CHardware::Enable(BSTR DriverID, long *pVal)
{
BOOL ShowHidden = 0;
HDEVINFO hDevInfo = 0;
long len;
//init the value
TIndex = -1;
len = wcstombs(NULL,DriverID,wcslen(DriverID));
len = len + 1;
DrvID = (char *)malloc(len);
memset(DrvID,0,len+1);
wcstombs(DrvID,DriverID,wcslen(DriverID));

if (INVALID_HANDLE_VALUE == (hDevInfo =
SetupDiGetClassDevs(NULL,NULL,NULL,
DIGCF_PRESENT|DIGCF_ALLCLASSES)))

{

*pVal = -1;
return S_OK;
}
//get the index of drv in the set
EnumAddDevices(ShowHidden,hDevInfo);

//disable the drv

if (IsDisabled(TIndex,hDevInfo))
if (StateChange(DICS_ENABLE,TIndex,hDevInfo))
*pVal = 0;
else
*pVal = -1;
else
*pVal = 0;

if(hDevInfo)
SetupDiDestroyDeviceInfoList(hDevInfo);
return S_OK;
}

××××××××××××××××××××××××××××××××××××
以上为原程序，其实可以去找微软的ddk去看一看，里面有一个列举机器的设备和启用禁用的实例，我的这个是为了应付老板，看了例子后做了一些改动。

flyboycsdn 2002-10-25

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// Hardware.cpp : Implementation of CHardware
#include "stdafx.h"
#include "NetCA_HARDWARE.h"
#include "Hardware.h"
#define UnknownDevice TEXT("<Unknown Device>")

/////////////////////////////////////////////////////////////////////////////
// CHardware

/*****************禁用设备********************************

参数说明: DriverID[in]--设备在注册表中的唯一标识
pVal[out,retval]--返回值，成功为0，失败为1
创建时间： 2002－6－21

**********************************************************/
STDMETHODIMP CHardware::Disable(BSTR DriverID, long *pVal)
{
BOOL ShowHidden = 0;
HDEVINFO hDevInfo = 0;
long len;
//init the value
TIndex = -1;
len = wcstombs(NULL,DriverID,wcslen(DriverID));
len = len + 1;
DrvID = (char *)malloc(len);
memset(DrvID,0,len+1);
wcstombs(DrvID,DriverID,wcslen(DriverID));

if (INVALID_HANDLE_VALUE == (hDevInfo =
SetupDiGetClassDevs(NULL,NULL,NULL,
DIGCF_PRESENT|DIGCF_ALLCLASSES)))

{

*pVal = -1;
return S_OK;
}
//get the index of drv in the set
EnumAddDevices(ShowHidden,hDevInfo);

//disable the drv

// if ((IsDisableable(TIndex,hDevInfo))&&(!(TIndex==-1)))
if (!IsDisabled(TIndex,hDevInfo))
if (IsDisableable(TIndex,hDevInfo))
if (StateChange(DICS_DISABLE,TIndex,hDevInfo))
*pVal = 0;
else
*pVal = -1;
else
*pVal = 1;
else
*pVal = 0;

if(hDevInfo)
SetupDiDestroyDeviceInfoList(hDevInfo);
return S_OK;
}

BOOL CHardware::EnumAddDevices(BOOL ShowHidden, HDEVINFO hDevInfo)
{
DWORD i, Status, Problem;

LPTSTR IOName=NULL;
DWORD len=0;
SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};

//
// Enumerate though all the devices.
//
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&DeviceInfoData);i++)
{
//
// Should we display this device, or move onto the next one.
//
if (CR_SUCCESS != CM_Get_DevNode_Status(&Status, &Problem,
DeviceInfoData.DevInst,0))
{

continue;
}

if (!(ShowHidden || !((Status & DN_NO_SHOW_IN_DM) ||
IsClassHidden(&DeviceInfoData.ClassGuid))))
continue;

//
// Get a friendly name for the device.
//

ConstructDeviceName(hDevInfo,&DeviceInfoData,
&IOName,
(PULONG)&len);
if (strcmp(IOName,DrvID) == 0)
{
TIndex = i;
return TRUE;
}
}
return TRUE;

}