贴一段ce下操作注册表的代码

 1 HKEY hSoftKey = NULL;
 2     DWORD dw;
 3     if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Software\\mysoft"), 0, KEY_WRITE|KEY_READ,&hSoftKey) != ERROR_SUCCESS){
 4         hSoftKey = NULL;
 5         if (RegCreateKeyEx(HKEY_CURRENT_USER,_T("Software\\mysoft"),0,REG_NONE,REG_OPTION_NON_VOLATILE,KEY_WRITE|KEY_READ,NULL,&hSoftKey,&dw) != ERROR_SUCCESS){
 6             AfxMessageBox(L"写注册表失败");
 7             if (hSoftKey != NULL)
 8             {
 9                 RegCloseKey(hSoftKey);
10             }  
11             return FALSE;
12         }
13     }
14     wchar_t ucode[MAX_PATH];
15     DWORD dwType = REG_SZ;
16     DWORD dwSize; 
17     WCHAR tmpKeyCode[17] = {0};
18     if( RegQueryValueEx(hSoftKey , L"UCODE" , NULL , &dwType , (LPBYTE)ucode , &dwSize) == ERROR_SUCCESS ){
19         int curUcodeLen = wcslen(ucode) ;
20         for( int i = 0 ; i < 16 ; i++ ){
21             if(i>=curUcodeLen){
22                 break;
23             }
24             tmpKeyCode[i] = ucode[i];
25         }
26     }else{
27         for( int i = 0 ; i < 16 ; i++ ){
28             tmpKeyCode[i] = code[ rand()%15 ];
29         }
30         if( RegSetValueEx(hSoftKey, L"UCODE",0,dwType, (LPBYTE)tmpKeyCode , (wcslen(tmpKeyCode) + 1)*sizeof(WCHAR) ) != ERROR_SUCCESS ){
31             AfxMessageBox(L"写注册表数值失败");
32             if (hSoftKey != NULL)
33             {
34                 RegCloseKey(hSoftKey);
35             }  
36             return FALSE;
37         }
38     }
39     if (hSoftKey != NULL)
40     {
41         RegCloseKey(hSoftKey);
42     }