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IVdsAdvancedDisk::AssignDriveLetter method (vds.h)

  • Article

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]

Assigns a drive letter to an existing OEM, ESP, or unknown partition.

Syntax

HRESULT AssignDriveLetter(
  [in] ULONGLONG ullOffset,
  [in] WCHAR     wcLetter
);

Parameters

[in] ullOffset

The partition offset.

[in] wcLetter

The drive letter to assign.

Return value

This method can return standard HRESULT values, such as E_INVALIDARG or E_OUTOFMEMORY, and VDS-specific return values. It can also return converted system error codes using the HRESULT_FROM_WIN32 macro. Errors can originate from VDS itself or from the underlying VDS provider that is being used. Possible return values include the following.

Return code/value Description
S_OK
 The drive letter was assigned successfully.
VDS_E_DRIVE_LETTER_NOT_FREE
0x8004255CL
 The specified drive letter is already assigned to another partition or volume.
VDS_E_INVALID_OPERATION
0x80042415L
 The partition is on a removable media; otherwise, the partition is not an OEM, ESP or unknown partition.
VDS_E_OBJECT_NOT_FOUND
0x80042405L
 The partition does not exist.

Remarks

VDS implements this method.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header vds.h
Library Uuid.lib

See also

Disk Object

IVdsAdvancedDisk