Windows 10では、CreateVirtualDisk APIを使用して仮想ディスクを作成しようとすると失敗し、エラーコード87を返します。
最小限の再現可能な例を完成させます。
program Project3;
{$APPTYPE CONSOLE}
{$R *.res}
uses
System.SysUtils,
Winapi.Windows;
type
// Identifiers for virtual storage types and providers
VIRTUAL_STORAGE_TYPE = record
DeviceId: ULONG; // VIRTUAL_STORAGE_TYPE_DEVICE_xxx
VendorId: TGUID; // VIRTUAL_STORAGE_TYPE_VENDOR_xxx
end;
PVIRTUAL_STORAGE_TYPE = ^VIRTUAL_STORAGE_TYPE;
const
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT: TGUID = '{EC984AEC-A0F9-47e9-901F-71415A66345B}';
VIRTUAL_STORAGE_TYPE_VENDOR_UNKNOWN: TGUID = '{00000000-0000-0000-0000-000000000000}';
type
// Version definitions
CREATE_VIRTUAL_DISK_VERSION = (
CREATE_VIRTUAL_DISK_VERSION_UNSPECIFIED = 0,
CREATE_VIRTUAL_DISK_VERSION_1 = 1
);
// Versioned CreateVirtualDisk parameter structure
CREATE_VIRTUAL_DISK_PARAMETERS_V1 = record
Version: CREATE_VIRTUAL_DISK_VERSION;
UniqueId: TGUID;
MaximumSize: ULONGLONG;
BlockSizeInBytes: ULONG;
SectorSizeInBytes: ULONG;
ParentPath: LPCWSTR;
SourcePath: LPCWSTR;
end;
PCREATE_VIRTUAL_DISK_PARAMETERS = Pointer;
const
VIRTUAL_STORAGE_TYPE_DEVICE_UNKNOWN = 0; //Device type is unknown or not valid.
VIRTUAL_STORAGE_TYPE_DEVICE_ISO = 1; //CD or DVD image file device type. (.iso file) Windows 7 and Windows Server 2008 R2: This value is not supported before Windows 8 and Windows Server 2012.
VIRTUAL_STORAGE_TYPE_DEVICE_VHD = 2; //Virtual hard disk device type. (.vhd file)
VIRTUAL_STORAGE_TYPE_DEVICE_VHDX = 3; //VHDX format virtual hard disk device type. (.vhdx file) Windows 7 and Windows Server 2008 R2: This value is not supported before Windows 8 and Windows Server 2012.
type
VIRTUAL_DISK_ACCESS_MASK = (
VIRTUAL_DISK_ACCESS_NONE = $00000000,
VIRTUAL_DISK_ACCESS_ATTACH_RO = $00010000,
VIRTUAL_DISK_ACCESS_ATTACH_RW = $00020000,
VIRTUAL_DISK_ACCESS_DETACH = $00040000,
VIRTUAL_DISK_ACCESS_GET_INFO = $00080000,
VIRTUAL_DISK_ACCESS_CREATE = $00100000,
VIRTUAL_DISK_ACCESS_METAOPS = $00200000,
VIRTUAL_DISK_ACCESS_READ = $000d0000,
VIRTUAL_DISK_ACCESS_ALL = $003f0000,
VIRTUAL_DISK_ACCESS_WRITABLE = $00320000
);
// Flags for CreateVirtualDisk
CREATE_VIRTUAL_DISK_FLAG = (
CREATE_VIRTUAL_DISK_FLAG_NONE = $00000000, // i.e. dynamically expanding disk
CREATE_VIRTUAL_DISK_FLAG_FULL_PHYSICAL_ALLOCATION = $00000001 // Pre-allocate all physical space necessary for the virtual size of the disk (e.g. a fixed VHD).
);
function CreateVirtualDisk(
{in} VirtualStorageType: PVIRTUAL_STORAGE_TYPE;
{in} Path: PWideChar;
{in} VirtualDiskAccessMask: VIRTUAL_DISK_ACCESS_MASK;
{in_opt} SecurityDescriptor: PSECURITY_DESCRIPTOR;
{in} Flags: CREATE_VIRTUAL_DISK_FLAG;
{in} ProviderSpecificFlags: ULONG;
{in} Parameters: PCREATE_VIRTUAL_DISK_PARAMETERS;
{in_opt} Overlapped: POverlapped;
out Handle: THandle
): DWORD; stdcall; external 'VirtDisk.dll';
procedure CreateVhd(Path: UnicodeString; FileSizeBytes: Int64);
var
storageType: VIRTUAL_STORAGE_TYPE;
parameters: CREATE_VIRTUAL_DISK_PARAMETERS_V1;
vhdHandle: THandle;
res: DWORD;
begin
// Specify UNKNOWN for both device and vendor so the system will use the file extension to determine the correct VHD format.
storageType.DeviceId := VIRTUAL_STORAGE_TYPE_DEVICE_VHD; //VIRTUAL_STORAGE_TYPE_DEVICE_UNKNOWN;
storageType.VendorId := VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT; //VIRTUAL_STORAGE_TYPE_VENDOR_UNKNOWN;
parameters := Default(CREATE_VIRTUAL_DISK_PARAMETERS_V1);
parameters.Version := CREATE_VIRTUAL_DISK_VERSION_1;
parameters.UniqueId := TGuid.NewGuid;
parameters.MaximumSize := FileSizeBytes;
parameters.BlockSizeInBytes := 0; //CREATE_VIRTUAL_DISK_PARAMETERS_DEFAULT_BLOCK_SIZE;
parameters.SectorSizeInBytes := 512; //CREATE_VIRTUAL_DISK_PARAMETERS_DEFAULT_SECTOR_SIZE;
parameters.ParentPath := nil;
parameters.SourcePath := nil;
res := CreateVirtualDisk(
@storageType,
PWideChar(Path),
VIRTUAL_DISK_ACCESS_NONE,
nil, // default security descriptor
CREATE_VIRTUAL_DISK_FLAG_NONE, // dynamically expanding disk
0,
@parameters,
nil, //not overlapped
{out}vhdHandle);
if res <> ERROR_SUCCESS then
begin
RaiseLastOSError(res);
Exit;
end;
CloseHandle(vhdHandle);
end;
begin
try
CreateVhd('C:\test.vhd', 15*1024*1024); //15 MB
except
on E: Exception do
Writeln(E.ClassName, ': ', E.Message);
end;
WriteLn('Press enter to close...');
ReadLn;
end.
明らかに、管理者として実行しても違いはありません。
VIRTUAL_DISK_ACCESS_ALL
代わりに使用することをお勧めしますVIRTUAL_DISK_ACCESS_NONE
。C ++(++やCに私が間違っ変換デルファイ)私はあなたのエラーを再現することはできません。バイナリexeもアタッチすると失敗する場所をより簡単に見つけることができます。これはデバッグの可能性があります