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Retrieves the supported ISO9660 compatibility levels.
Syntax
HRESULT get_ISO9660InterchangeLevelsSupported(
  [out] SAFEARRAY **pVal
);
Parameters
[out] pVal
List of supported ISO9660 compatibility levels. Each item in the list is a VARIANT that identifies one supported interchange level. The variant type is VT_UI4. The ulVal member of the variant contains the compatibility level.
Return value
S_OK is returned on success, but other success codes may be returned as a result of implementation. The following error codes are commonly returned on operation failure, but do not represent the only possible error values:
| Return code | Description | 
|---|---|
| 
 | Pointer is not valid. Value: 0x80004003 | 
Requirements
| Requirement | Value | 
|---|---|
| Minimum supported client | Windows Vista, Windows XP with SP2 [desktop apps only] | 
| Minimum supported server | Windows Server 2003 [desktop apps only] | 
| Target Platform | Windows | 
| Header | imapi2fs.h |