windows注册表的基本使用——示例

上网找好多资料发现一个问题就是太老。例如只有RegCreateKey而没有RegCreateKeyEx用法详解，自己摸索了几个小时终于基本用到的几个函数都试用了一遍。

下面代码已经通过编译测试

 // test__regedit.cpp : 定义控制台应用程序的入口点。
 //

 #include "stdafx.h"

 #include <windows.h>
 #include <iostream>

 #include <vld.h>

 void test__create_regedit()
 {
     LPCTSTR lpSubKeyGOCOM = TEXT("SOFTWARE\\GoCom5.5");
     HKEY hKeyGOCOM = NULL;
     DWORD dwDisposition;//是否存在
     if ( ERROR_SUCCESS==::RegCreateKeyEx(HKEY_LOCAL_MACHINE, lpSubKeyGOCOM, , NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKeyGOCOM, &dwDisposition) )
     {
         std::cout << "RegCreateKeyEx successful" << std::endl;
         if (REG_CREATED_NEW_KEY==dwDisposition)
         {
             std::cout << "key create" << std::endl;
         }
         else
         {
             std::cout << "key open" << std::endl;
         }

         LPCTSTR lpAutoRun = TEXT("auto_run");
         LPCTSTR lpAutoRunVal = TEXT("TRUE");
         if ( ERROR_SUCCESS==::RegSetValueEx(hKeyGOCOM, lpAutoRun, , REG_SZ, (BYTE*)lpAutoRunVal, (lstrlen(lpAutoRunVal)+)*sizeof(TCHAR)) )
         {
             std::cout << "value successful" << std::endl;
         }
         else
         {
             std::cout << "value fail" << std::endl;
         }

         LPCTSTR lpAutoRun2 = TEXT("auto_run2");
         DWORD dw32AutoRunVal2 = ;
         if ( ERROR_SUCCESS==::RegSetValueEx(hKeyGOCOM, lpAutoRun2, , REG_DWORD, (BYTE*)&dw32AutoRunVal2, sizeof(DWORD)) )
         {
             std::cout << "value2 successful" << std::endl;
         }
         else
         {
             std::cout << "value2 fail" << std::endl;
         }

         LPTSTR lpAutoRunValret = (LPTSTR)malloc(*sizeof(TCHAR));
         DWORD cbAutoRunValret = *sizeof(TCHAR);
         ZeroMemory(lpAutoRunValret, );
         if ( ERROR_SUCCESS==::RegGetValue(HKEY_LOCAL_MACHINE, lpSubKeyGOCOM, lpAutoRun, RRF_RT_REG_SZ, NULL, lpAutoRunValret, &cbAutoRunValret) )
         {
             std::cout << "value get successful" << std::endl;
         }
         else
         {
             std::cout << "value get fail" << std::endl;
         }
         free(lpAutoRunValret);

         DWORD dwAutoRunValret2;
         DWORD cbAutoRunValret2 = sizeof(DWORD);
         if ( ERROR_SUCCESS==::RegGetValue(HKEY_LOCAL_MACHINE, lpSubKeyGOCOM, lpAutoRun2, RRF_RT_DWORD, NULL, (PVOID)&dwAutoRunValret2, &cbAutoRunValret2) )
         {
             std::cout << "value2 get successful" << dwAutoRunValret2 << std::endl;
         }
         else
         {
             std::cout << "value2 get fail" << std::endl;
         }

         LPTSTR lpAutoRunValret3 = (LPTSTR)malloc(*sizeof(TCHAR));
         DWORD cbAutoRunValret3 = *sizeof(TCHAR);
         ZeroMemory(lpAutoRunValret, );
         if ( ERROR_SUCCESS==::RegSetValueEx(hKeyGOCOM, lpAutoRun, , RRF_RT_REG_SZ, (BYTE*)lpAutoRunValret3, cbAutoRunValret3) )
         {
             std::cout << "value get successful" << std::endl;
         }
         else
         {
             std::cout << "value get successful" << std::endl;
         }
         free(lpAutoRunValret);

         DWORD dwAutoRunValret4 = -;
         DWORD cbAutoRunValret4 = sizeof(DWORD);
         if ( ERROR_SUCCESS==::RegSetValueEx(hKeyGOCOM, lpAutoRun, , RRF_RT_DWORD, (BYTE*)dwAutoRunValret4, cbAutoRunValret4) )
         {
             std::cout << "value2 get successful" << std::endl;
         }
         else
         {
             std::cout << "value2 get successful" << std::endl;
         }

     }
     else
     {
         std::cout << "RegCreateKeyEx fail" << std::endl;
     }
     if (hKeyGOCOM!=NULL)
     {
         ::RegCloseKey(hKeyGOCOM);
     }
 }
 void test__open_regedit()
 {
     LPCTSTR lpSubKeyGOCOM = TEXT("SOFTWARE\\GoCom5.5");
     HKEY hKeyGOCOM = NULL;
     if ( ERROR_SUCCESS==::RegOpenKeyEx(HKEY_LOCAL_MACHINE, lpSubKeyGOCOM, , KEY_ALL_ACCESS|KEY_READ|KEY_WRITE, &hKeyGOCOM) )
     {
         std::cout << "RegOpenKeyEx successful" << std::endl;
     }
     else
     {
         std::cout << "RegOpenKeyEx fail" << std::endl;
     }
     if (hKeyGOCOM!=NULL)
     {
         ::RegCloseKey(hKeyGOCOM);
     }
 }

 int _tmain(int argc, _TCHAR* argv[])
 {
     test__open_regedit();
     test__create_regedit();
     return ;
 }

由于时间关系还有很多函数没有用到，等以后以机会在放上来吧（例如：RegQueryInfoKey等）