Работа с CreateFile и DeviceIoControl

#include <iostream>
#include <windows.h>
#include <Winioctl.h>
 #include <cinio.h>
void main(void)
{
    _getch();
    while (true){
        if (VK_RETURN) break;
    
    DWORD dwBytesReturned;
    STORAGE_PROPERTY_QUERY query;
    STORAGE_DEVICE_DESCRIPTOR *buffer;
 
    buffer = new STORAGE_DEVICE_DESCRIPTOR[5];
 
    HANDLE hDrive = CreateFile(L"\\\\.\\PhysicalDrive0", 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
        OPEN_EXISTING, 0, NULL);
 
    memset((void *)&query, 0, sizeof (query));
    memset((void *)buffer, 0, sizeof (buffer));
 
    query.PropertyId = StorageDeviceProperty;
    query.QueryType = PropertyExistsQuery;
 
    query.PropertyId = StorageDeviceProperty;
    query.QueryType = PropertyStandardQuery;
 
    DeviceIoControl(hDrive, IOCTL_STORAGE_QUERY_PROPERTY, &query, sizeof(query),
        buffer, 500, &dwBytesReturned, NULL);
 
    if (buffer->VendorIdOffset != 0) {
        char *str = (char*)((char*)buffer + buffer->VendorIdOffset);
        cout << "VendorId: " << str << endl;
    }
    if (buffer->ProductIdOffset != 0) {
        char *str = (char*)((char*)buffer + buffer->ProductIdOffset);
        cout << "ProductId: " << str << endl;
    }
    if (buffer->ProductRevisionOffset != 0) {
        char *str = (char*)((char*)buffer + buffer->ProductRevisionOffset);
        cout << "ProductRevision: " << str << endl;
    }
    if (buffer->SerialNumberOffset != 0) {
        char *str = (char*)((char*)buffer + buffer->SerialNumberOffset);
        cout << "SerialNumber: " << str << endl;
    }
 
  //  CloseHandle(hDrive);
  //  delete[] buffer;
    
    }
}

void main(void)
{
while (true)
{
 
        if (_getch() == '\13') 
              break;