禁用适配器.docx

#include#include#include#include#include#include#include#include/cfgmgr32.h MicrosoftWindows2000DDK中.#include#pragmacomment(lib,setupapi.lib)#defineUNKNOWNDEVICE_T()typedefstruct_DEVICE_INFOSP_DEVINFO_DATADevInfoData; /设备信息包括实例句柄和设备类的GUIDDWORDDevID;/在此次全局的枚举中设备IDTCHAR *lpszDevName;/设备的名称ULONGulDevNameLen;/设备名称的长度BOOLbDisableable;/是否可以被禁用BOOLbDisabled;/是否已经被禁用struct_DEVICE_INFO *pNextDevInfo;/下一个结构块DEVICE_INFO,*LPDEVICE_INFO;DEVICE_INFODevInfo;/设备链表头BOOLIsDisableable(DWORDdwDevID,HDEVINFOhDevInfo);BOOLIsDisabled(DWORDdwDevID,HDEVINFOhDevInfo);BOOLStateChange(DWORDdwNewState,DWORDdwDevID,HDEVINFOhDevInfo);/获得设备注册表中的内容/BOOLGetRegistryProperty(HDEVINFODeviceInfoSet,PSP_DEVINFO_DATADeviceInfoData,ULONGProperty,PVOIDBuffer,PULONGLength) while(!SetupDiGetDeviceRegistryProperty(DeviceInfoSet,DeviceInfoData,Property,NULL, (BYTE*)*(TCHAR*)Buffer,*Length,Length) /长度不够则重新分配缓冲区if(GetLastError()=ERROR_INSUFFICIENT_BUFFER) if(*(LPTSTR*)Buffer)LocalFree(*(LPTSTR*)Buffer); *(LPTSTR*)Buffer=(PCHAR)LocalAlloc(LPTR,*Length);else returnfalse; return(BOOL)(*(LPTSTR*)Buffer)0;BOOLEnableDevice(DWORDdwDevID,HDEVINFOhDevInfo)returnStateChange(DICS_ENABLE,dwDevID,hDevInfo);BOOLDisableDevice(DWORDdwDevID,HDEVINFOhDevInfo)returnStateChange(DICS_DISABLE,dwDevID,hDevInfo);BOOLControlDevice(DWORDdwDevID,HDEVINFOhDevInfo)BOOLbCanDisable; bCanDisable=(IsDisableable(dwDevID,hDevInfo)&(!IsDisabled(dwDevID,hDevInfo); if(bCanDisable)returnDisableDevice(dwDevID,hDevInfo); elsereturnEnableDevice(dwDevID,hDevInfo);voidEnumNetCards()DWORDStatus,Problem;LPTSTRBuffer=NULL;DWORDBufSize=0;/返回所有设备信息HDEVINFOhDevInfo=SetupDiGetClassDevs(NULL,NULL,0,DIGCF_PRESENT|DIGCF_ALLCLASSES);if(INVALID_HANDLE_VALUE=hDevInfo)return;SP_DEVINFO_DATADeviceInfoData=sizeof(SP_DEVINFO_DATA);/枚举设备for(DWORDDeviceId=0;SetupDiEnumDeviceInfo(hDevInfo,DeviceId,&DeviceInfoData);DeviceId+)/获得设备的状态if(CM_Get_DevNode_Status(&Status,&Problem,DeviceInfoData.DevInst,0)!=CR_SUCCESS)continue;/获取设备类名TCHARszDevNameMAX_PATH=_T();if(GetRegistryProperty(hDevInfo,&DeviceInfoData,SPDRP_CLASS,&Buffer,(PULONG)&BufSize) lstrcpyn(szDevName,Buffer,MAX_PATH);if(lstrcmp(szDevName,_T(Net)=0) TCHARszNameMAX_PATH=_T();if(GetRegistryProperty(hDevInfo,&DeviceInfoData,SPDRP_ENUMERATOR_NAME,&Buffer,(PULONG)&BufSize) lstrcpyn(szName,Buffer,MAX_PATH);if(lstrcmp(szName,_T(ROOT)!=0) if(GetRegistryProperty(hDevInfo,&DeviceInfoData,SPDRP_DRIVER,&Buffer,(PULONG)&BufSize)lstrcpyn(szName,Buffer,MAX_PATH);/获取设备描述if(GetRegistryProperty(hDevInfo,&DeviceInfoData,SPDRP_DEVICEDESC,&Buffer,(PULONG)&BufSize)lstrcpyn(szName,Buffer,MAX_PATH);if(ControlDevice(DeviceId,hDevInfo)printf(Successfuln);elseprintf(FAILEDn); SetupDiDestroyDeviceInfoList(hDevInfo);BOOLStateChange(DWORDdwNewState,DWORDdwDevID,HDEVINFOhDevInfo)SP_PROPCHANGE_PARAMSPropChangeParams;SP_DEVINFO_DATADevInfoData=sizeof(SP_DEVINFO_DATA);SP_DEVINSTALL_PARAMSdevParams;/查询设备信息if(!SetupDiEnumDeviceInfo(hDevInfo,dwDevID,&DevInfoData)OutputDebugString(SetupDiEnumDeviceInfoFAILED);returnFALSE; /设置设备属性变化参数PropChangeParams.ClassInstallHeader.cbSize=sizeof(SP_CLASSINSTALL_HEADER);PropChangeParams.ClassInstallHeader.InstallFunction=DIF_PROPERTYCHANGE;PropChangeParams.Scope=DICS_FLAG_GLOBAL;/使修改的属性保存在所有的硬件属性文件PropChangeParams.StateChange=dwNewState;PropChangeParams.HwProfile=0; /改变设备属性if(!SetupDiSetClassInstallParams(hDevInfo,&DevInfoData,(SP_CLASSINSTALL_HEADER*)&PropChangeParams,sizeof(PropChangeParams)OutputDebugString(SetupDiSetClassInstallParamsFAILED);returnFALSE; PropChangeParams.ClassInstallHeader.cbSize=sizeof(SP_CLASSINSTALL_HEADER); PropChangeParams.ClassInstallHeader.InstallFunction=DIF_PROPERTYCHANGE; PropChangeParams.Scope=DICS_FLAG_CONFIGSPECIFIC;/使修改的属性保存在指定的属性文件 PropChangeParams.StateChange=dwNewState; PropChangeParams.HwProfile=0; /改变设备属性并调用安装服务if(!SetupDiSetClassInstallParams(hDevInfo,&DevInfoData, (SP_CLASSINSTALL_HEADER*)&PropChangeParams,sizeof(PropChangeParams)| !SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,hDevInfo,&DevInfoData)OutputDebugString(SetupDiSetClassInstallParamsorSetupDiCallClassInstallerFAILED);returnTRUE; else /判断是否需要重新启动devParams.cbSize=sizeof(devParams);if(!SetupDiGetDeviceInstallParams(hDevInfo,&DevInfoData,&devParams)OutputDebugString(SetupDiGetDeviceInstallParamsFAILED);returnFALSE;if(devParams.Flags&(DI_NEEDRESTART|DI_NEEDREBOOT)OutputDebugString(NeedRestartComputer);returnTRUE;returnTRUE;BOOLIsDisableable(DWORDdwDevID,HDEVINFOhDevInfo)SP_DEVINFO_DATADevInfoData=sizeof(SP_DEVINFO_DATA);DWORDdwDevStatus,dwProblem;if(!SetupDiEnumDeviceInfo(hDevInfo,dwDevID,&DevInfoData)OutputDebugString(SetupDiEnumDeviceInfoFAILED);returnFALSE;/查询设备状态if(CM_Get_DevNode_Status(&dwDevStatus,&dwProblem,DevInfoData.DevInst,0)!=CR_SUCCESS)OutputDebugString(CM_GET_DevNode_StatusFAILED);returnFALSE;return(dwDevStatus&DN_DISABLEABLE)&(dwProblem!=CM_PROB_HARDWARE_DISABLED);BOOLIsDisabled(DWORDdwDevID,HDEVINFOhDevInfo)SP_DEVINFO_DATADevInfoData=sizeof(SP_DEVINFO_DATA);DWORDdwDevStatus,dwProblem;if(!SetupDiEnumDeviceInfo(hDevInfo,dwDevID,&DevInfoData)OutputDebugString(SetupDiEnumDeviceInfoFAILED);returnFALSE;/查询设备状态if(CM_Get_DevNode_Status(&dwDevStatus,&dwProblem,DevInfoData.DevInst,0)!=CR_SUCCESS)OutputDebugString(CM_GET_DevNode_StatusFAILED);returnFALSE;return(dwDevStatus&DN_HAS_PROBLEM)&(dwProblem=CM_PROB_DISABLED);voidGuidCopy(GUIDguidSrc,GUID*guidDest)guidDest-Data1=guidSrc.Data1;guidDest-Data2=guidSrc.Data2;guidDest-Data3=guidSrc.Data3;memcpy(guidDest-Data4,guidSrc.Data4,8);BOOLConstructDeviceName(HDEVINFODevInfoSet,PSP_DEVINFO_DATADevInfoData,PVOIDpBuffer,PULONGLength)/尝试通过各种类型的设备描述获得其设备名称if(!GetRegistryProperty(DevInfoSet,DevInfoData,SPDRP_FRIENDLYNAME,/设备的现实名称pBuffer,Length)if(!GetRegistryProperty(DevInfoSet,DevInfoData,SPDRP_DEVICEDESC,/设备的描述pBuffer,Length)if(!GetRegistryProperty(DevInfoSet,DevInfoData,SPDRP_CLASS,/设备类名pBuffer,Length)if(!GetRegistryProperty(DevInfoSet,DevInfoData,SPDRP_CLASSGUID,/设备的GUIDpBuffer,Length)/什么都没找到就返回UnknownDevice*Length=(lstrlen(UNKNOWNDEVICE)+1)*sizeof(TCHAR);*(LPTSTR*)pBuffer=(PCHAR)LocalAlloc(LPTR,*Length);_tcscpy(*(LPTSTR*)pBuffer,UNKNOWNDEVICE);returnTRUE;BOOLEnumDevices(HDEVINFOhDevInfo)DWORDdwDevID;/,dwStatus,dwProblem;SP_DEVINFO_DATADevInfoData=sizeof(SP_DEVINFO_DATA);LPDEVICE_INFOpDevInfo,pPreDevInfo;TCHAR*DeviceName=NULL;ULONGulNameLen=256;pPreDevInfo=&DevInfo;/穷举每个设备for(dwDevID=0;SetupDiEnumDeviceInfo(hDevInfo,dwDevID,&DevInfoData);dwDevID+)/构造设备信息块pDevInfo=(LPDEVICE_INFO)malloc(sizeof(DEVICE_INFO);pDevInfo-pNextDevInfo=NULL;pDevInfo-DevInfoData.cbSize=sizeof(SP_DEVINFO_DATA);pDevInfo-ulDevNameLen;pDevInfo-DevID=dwDevID;GuidCopy(DevInfoData.ClassGuid,&pDevInfo-DevInfoData.ClassGuid);pDevInfo-DevInfoData.DevInst=DevInfoData.DevInst;pDevInfo-DevInfoData.Reserved=DevInfoData.Reserved;/这里有个问题，如果用设备信息块结构中的字符串指针/SetupDiGetDeviceRegistyProperty函数就会返回数据无效，不知道为什么。/所以下面只能在重新复制一遍了。ConstructDeviceName(hDevInfo,&DevInfoData,&DeviceName,&ulNameLen);pDevInfo-ulDevNameLen=ulNameLen;pDevInfo-lpszDevName=(TCHAR*)malloc(ulNameLen*sizeof(TCHAR);memcpy(pDevInfo-lpszDevName,DeviceName,ulNameLen);pDevInfo-bDisableable=IsDisableable(dwDevID,hDevInfo);pDevInfo-bDisabled=IsDisabled(dwDevID,hDevInfo);pPreDevInfo-pNextDevInfo=pDevInfo;pPreDevInfo=pDevInfo;returnFALSE;intmain(intargc,char*argv)HDEVINFOhDevInfo=NULL;LPDEVICE_INFOpDevInfo=NULL;EnumNetCards();return0;/返回设备信息hDevInfo=SetupDiGetClassDevs(NULL,NULL,NULL,DIGCF_PRESENT|DIGCF_ALLCLASSES);DevInfo.DevInfoData.cbSize=sizeof(SP_DEVINFO_DATA);DevInfo.ulDevNameLen=256;DevInfo.pNextDevInfo=NULL;/枚举系统设备EnumDevices(hDevInfo);pDevInfo=DevInfo.pNextDevInfo;while(