禁用启动设备

#include <windows.h>#include <setupapi.h>#include <shlwapi.h>#pragma comment(lib, "setupapi.lib")#pragma comment(lib, "shlwapi.lib") // device information set(我把它译为设备信息集)#pragma comment(lib, "Rpcrt4.lib")BOOL StopDevice(BOOL bStatus){LPTSTR HardwareId=_T("{4d36e96c-e325-11ce-bfc1-08002be10318}") ;DWORD NewState ;DWORD i,err ;BOOL Found=FALSE ;HDEVINFO hDevInfo ;SP_DEVINFO_DATA spDevInfoData ;if(bStatus){NewState=DICS_DISABLE ;//禁用}else {NewState=DICS_ENABLE ;//启用}//访问系统的硬件库hDevInfo=SetupDiGetClassDevs(NULL,_T("PCI"),NULL,DIGCF_ALLCLASSES|DIGCF_PRESENT);if(hDevInfo==INVALID_HANDLE_VALUE){printf("访问系统硬件出错！\n");return FALSE ;}//枚举硬件，获得需要的接口spDevInfoData.cbSize=sizeof(SP_DEVINFO_DATA);BOOL flagEnum;for(i=0;flagEnum = SetupDiEnumDeviceInfo(hDevInfo,i,&spDevInfoData);i++){  DWORD DataT ;TCHAR buffer[100]={0};DWORD buffersize=0 ;//获得硬件的属性值buffersize = sizeof(buffer);while(!SetupDiGetDeviceRegistryProperty(hDevInfo,&spDevInfoData,SPDRP_SERVICE/*SPDRP_CLASSGUID*/,&DataT,(PBYTE)buffer,buffersize,&buffersize)){DWORD a = GetLastError();if(GetLastError()==ERROR_INVALID_DATA){//不存在HardwareID. Continue.break ;}else if(GetLastError()==ERROR_INSUFFICIENT_BUFFER){//buffer size不对.if(buffer)LocalFree(buffer);//                buffer=(char*)LocalAlloc(LPTR,buffersize);}else {//未知错误goto cleanup_DeviceInfo ;}}if(GetLastError()==ERROR_INVALID_DATA)continue ;if(NULL == buffer){//LocalFree(buffer);continue ;}if(!_tcscmp(_T("3xHybrid")/*HardwareId*/,buffer)){printf("找到指定设备\n");_tprintf(buffer);SP_PROPCHANGE_PARAMS spPropChangeParams ;spPropChangeParams.ClassInstallHeader.cbSize=sizeof(SP_CLASSINSTALL_HEADER);spPropChangeParams.ClassInstallHeader.InstallFunction=DIF_PROPERTYCHANGE ;spPropChangeParams.Scope=DICS_FLAG_GLOBAL ;spPropChangeParams.StateChange=NewState ;//禁用：DICS_DISABLE，DICS_ENABLE启用//if(!SetupDiSetClassInstallParams(hDevInfo,&spDevInfoData,(SP_CLASSINSTALL_HEADER*)&spPropChangeParams,sizeof(spPropChangeParams))){DWORD errorcode=GetLastError();goto cleanup_DeviceInfo;}if(!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,hDevInfo,&spDevInfoData)){DWORD errorcode=GetLastError();goto cleanup_DeviceInfo;}switch(NewState){case DICS_DISABLE :printf("禁用设备成功！\n");break ;case DICS_ENABLE :printf("启动设备成功！\n");break ;}}}//退出时，清理工作环境cleanup_DeviceInfo :err=GetLastError();SetupDiDestroyDeviceInfoList(hDevInfo);SetLastError(err);return TRUE ;}