如何编程实现禁用和启用网卡

[悲酥清风]

如题

[pomelowu]

#include "stdafx.h"
#include <tchar.h>
#include <windows.h>
#include <setupapi.h>

#pragma comment (lib,"setupapi")

#define UnknownDevice TEXT("")

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 %d\n",i);
//
//DICS_DISABLE-->禁用网络
//DICS_ENABLE--->恢复网络
//
if (StateChange(DICS_ENABLE,i,hDevInfo))
printf("NetWork stopped");

}
}

return 0;
}

[striking]

收下, 谢谢

[悲酥清风]

解决谢谢

[robot_zyt]

怎么根据指定的网卡名禁用和启用网卡?

[robot_zyt]

怎么禁用和启用指定网卡?

[TechiceY]

执行到这里就会死机
if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,
hDevInfo,
&DeviceInfoData))
{
printf("SetClassInstallParams");
SetCursor(hCursor);
return TRUE;
}

why?