/// <summary>
/// Retrieves virtual storage type.
/// </summary>
/// <param name="deviceId">Device type identifier.</param>
/// <param name="vendorId">Vendor-unique identifier.</param>
public void GetVirtualStorageType(out int deviceId, out Guid vendorId)
{
var info = new NativeMethods.GET_VIRTUAL_DISK_INFO();
info.Version = NativeMethods.GET_VIRTUAL_DISK_INFO_VERSION.GET_VIRTUAL_DISK_INFO_VIRTUAL_STORAGE_TYPE;
int size = Marshal.SizeOf(info);
int sizeUsed = 0;
int res = NativeMethods.GetVirtualDiskInformation(this._handle, ref size, ref info, ref sizeUsed);
if (res == NativeMethods.ERROR_SUCCESS) {
deviceId = info.Union.VirtualStorageType.DeviceId;
vendorId = info.Union.VirtualStorageType.VendorId;
} else if (res == NativeMethods.ERROR_DEV_NOT_EXIST) {
throw new IOException("Device could not be accessed.");
} else {
throw new Win32Exception(res);
}
}
public int GetProviderSubtype()
{
var info = new NativeMethods.GET_VIRTUAL_DISK_INFO();
info.Version = NativeMethods.GET_VIRTUAL_DISK_INFO_VERSION.GET_VIRTUAL_DISK_INFO_PROVIDER_SUBTYPE;
int size = Marshal.SizeOf(info);
int sizeUsed = 0;
int res = NativeMethods.GetVirtualDiskInformation(this._handle, ref size, ref info, ref sizeUsed);
if (res == NativeMethods.ERROR_SUCCESS) {
return info.Union.ProviderSubtype;
} else if (res == NativeMethods.ERROR_DEV_NOT_EXIST) {
throw new IOException("Device could not be accessed.");
} else {
throw new Win32Exception(res);
}
}
/// <summary>
/// Retrieves size information.
/// </summary>
/// <param name="virtualSize">Virtual size of the VHD, in bytes.</param>
/// <param name="physicalSize">Physical size of the VHD on disk, in bytes.</param>
/// <param name="blockSize">Block size of the VHD, in bytes.</param>
/// <param name="sectorSize">Sector size of the VHD, in bytes.</param>
public void GetSize(out long virtualSize, out long physicalSize, out int blockSize, out int sectorSize)
{
var info = new NativeMethods.GET_VIRTUAL_DISK_INFO();
info.Version = NativeMethods.GET_VIRTUAL_DISK_INFO_VERSION.GET_VIRTUAL_DISK_INFO_SIZE;
int size = Marshal.SizeOf(info);
int sizeUsed = 0;
int res = NativeMethods.GetVirtualDiskInformation(this._handle, ref size, ref info, ref sizeUsed);
if (res == NativeMethods.ERROR_SUCCESS) {
virtualSize = info.Union.Size.VirtualSize;
physicalSize = info.Union.Size.PhysicalSize;
blockSize = info.Union.Size.BlockSize;
sectorSize = info.Union.Size.SectorSize;
} else if (res == NativeMethods.ERROR_DEV_NOT_EXIST) {
throw new IOException("Device could not be accessed.");
} else {
throw new Win32Exception(res);
}
}
public Guid GetIdentifier()
{
var info = new NativeMethods.GET_VIRTUAL_DISK_INFO();
info.Version = NativeMethods.GET_VIRTUAL_DISK_INFO_VERSION.GET_VIRTUAL_DISK_INFO_IDENTIFIER;
int size = Marshal.SizeOf(info);
int sizeUsed = 0;
int res = NativeMethods.GetVirtualDiskInformation(this._handle, ref size, ref info, ref sizeUsed);
if (res == NativeMethods.ERROR_SUCCESS) {
return info.Union.Identifier;
} else if (res == NativeMethods.ERROR_DEV_NOT_EXIST) {
throw new IOException("Device could not be accessed.");
} else {
throw new Win32Exception(res);
}
}
