IVdsAsync::Cancel method (vds.h)
[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]
Cancels the asynchronous operation.
Syntax
HRESULT Cancel();
Return value
This method can return standard HRESULT values, such as 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 |
|---|---|
|
The method is not supported. Neither the basic provider nor the current dynamic provider support this method. |
|
The operation has already been canceled. |
|
The operation has progressed too far to cancel. |
|
The file system is incompatible with the specified operation. |
|
The media is incompatible with this operation. |
|
Access is denied. An application using VDS must run under the Backup Operator or Administrators group account. |
Remarks
Dynamic providers do not implement this method. The basic provider checks for this method only when cleaning a disk and does not implement it for any other operation.
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 |