visual c++实现断网-禁用网卡,禁用网络.zip

// StopNet2.cpp : Defines the entry point for the console application. // #include "stdafx.h" #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 %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; }