Разработка приложения для чтения локального и удаленного реестра Windows

{

    TCHAR    achKey[MAX_KEY_LENGTH];

    DWORD    cbName;                   // size of name string

    TCHAR    achClass[MAX_PATH] = TEXT("");  // buffer for class name

    DWORD    cchClassName = MAX_PATH;  // size of class string

    DWORD    cSubKeys=0;               // number of subkeys

    DWORD    cbMaxSubKey;              // longest subkey size

    DWORD    cchMaxClass;              // longest class string

    DWORD    cValues;              // number of values for key

    DWORD    cchMaxValue;          // longest value name

    DWORD    cbMaxValueData;       // longest value data

    DWORD    cbSecurityDescriptor; // size of security descriptor

    FILETIME ftLastWriteTime;      // last write time

    DWORD dwDataSize,dwType;

    DWORD i, retCode;

    TCHAR  achValue[MAX_VALUE_NAME];

    DWORD cchValue = MAX_VALUE_NAME;

    // Get the class name and the value count.

    retCode = RegQueryInfoKey(

        hKey,                    // key handle

        achClass,                // buffer for class name

        &cchClassName,           // size of class string

        NULL,                    // reserved

        &cSubKeys,               // number of subkeys

        &cbMaxSubKey,            // longest subkey size

        &cchMaxClass,            // longest class string

        &cValues,                // number of values for this key

        &cchMaxValue,            // longest value name

        &cbMaxValueData,         // longest value data

        &cbSecurityDescriptor,   // security descriptor

        &ftLastWriteTime);       // last write time

    // Enumerate the subkeys, until RegEnumKeyEx fails.

    if (cSubKeys)

    {

        for (i=0; i<cSubKeys; i++)

        {

            cbName = MAX_KEY_LENGTH;

            retCode = RegEnumKeyEx(hKey, i,

                     achKey,

                     &cbName,

                     NULL,

                     NULL,

                     NULL,

                     &ftLastWriteTime);

            if (retCode == ERROR_SUCCESS)

            {

               QTreeWidgetItem *ptwgItemDir1 = new QTreeWidgetItem(item);

               ptwgItemDir1->setText(0,QString::fromWCharArray(achKey));

            TrV->expandItem(item);

            }

        }

    }

    // Enumerate the key values.