SDK 注册表 读写

#include <iostream> #include <string> #include <cctype> #include <windows.h> using namespace std; void RegWrite(); void RegRead(); int main() { RegWrite(); RegRead(); return 0; } void RegWrite() { HKEY hKEY; //The RegCreateKey function creates the specified registry key. If the key already exists in the registry, the function opens it. RegCreateKey(HKEY_LOCAL_MACHINE,"Software//Mike//admin",&hKEY); //The RegSetValue function sets the data for the default or unnamed value of a specified registry key. The data must be a text string. //设置默认的KEY的value RegSetValue(hKEY,NULL,REG_SZ,"Mike",strlen("Mike")); DWORD dwAge=89; //The RegSetValueEx function sets the data and type of a specified value under a registry key. RegSetValueEx(hKEY,"age",0,REG_DWORD,(CONST BYTE*)&dwAge,4); RegCloseKey(hKEY); } void RegRead() { //方法一 读取一般的 key 的值 LONG lValue; //lValue 用于存储值的字节产度 RegQueryValue(HKEY_LOCAL_MACHINE,"Software//Mike//admin",NULL,&lValue); char* pBuf=new char[lValue]; RegQueryValue(HKEY_LOCAL_MACHINE,"Software//Mike//admin",pBuf,&lValue); cout<<pBuf<<endl; //方法二 HKEY hKey; RegOpenKey(HKEY_LOCAL_MACHINE,"Software//Mike//admin",&hKey); DWORD dwType; DWORD dwValue; DWORD dwAge; RegQueryValueEx(hKey,"age",0,&dwType,(LPBYTE)&dwAge,&dwValue); cout<<dwAge<<endl; }

 

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