VC++實現註冊表監控

//監視HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run項#include <windows.h>//定義一個監視註冊表啟動項的函數int reg(){   HANDLE hNotify;   HKEY hKeyx;   //DWORD dwRes;   hNotify = CreateEvent(NULL, //不使用SECURITY_ATTRIBUTES結構         FALSE, //不自動重設         TRUE,   //設定初始狀態         "RegistryNotify" //事件對象的名稱         );   if (hNotify == 0)   {     MessageBox(NULL,"CreateEvent failed"," ",MB_OK);     ExitProcess(0);   }   if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, //根鍵         "Software\\Microsoft\\Windows\\CurrentVersion\\Run", //子鍵         0, //reserved         KEY_NOTIFY, //監視用         &hKeyx //儲存控制代碼         ) != ERROR_SUCCESS)   {     CloseHandle(hNotify);     MessageBox(NULL,"RegOpenKeyEx failed"," ",MB_OK);     ExitProcess(0);   }   if (RegNotifyChangeKeyValue(hKeyx, //監視子鍵控制代碼         TRUE, //監視此項的子鍵         REG_NOTIFY_CHANGE_NAME | REG_NOTIFY_CHANGE_LAST_SET, //監視增加或刪除了子鍵，監視索引值發生是否改變         hNotify, //接受註冊表變化事件的事件物件控點         TRUE //註冊表變化前報告         ) != ERROR_SUCCESS)   {     CloseHandle(hNotify);     RegCloseKey(hKeyx);     MessageBox(NULL,"RegNotifyChangeKeyValue failed"," ", MB_OK);     ExitProcess(0);   }   if (WaitForSingleObject(hNotify, INFINITE) != WAIT_FAILED)   {     MessageBox(NULL,"註冊表有改動"," ",MB_OK);   }   CloseHandle(hNotify);   RegCloseKey(hKeyx);   return 0;}void main(){ // DWORD ID; // CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)reg, NULL, 0, &ID);   //建立線程 // printf("ok\n");reg();}