AcxDataFormatGetMajorFormat function (acxdataformat.h)
The AcxDataFormatGetMajorFormat function gets the major format for the specified data format.
Syntax
GUID AcxDataFormatGetMajorFormat(
[in] ACXDATAFORMAT DataFormat
);
Parameters
[in] DataFormat
The data format for which to retrieve the major format.
Return value
Returns a GUID value representing the major format for the specified DataFormat.
Remarks
Specifies the general format type. The data formats that are currently supported can be found in the KSDATAFORMAT_TYPE_XXX symbolic constants in the ksmedia.h header file that is included in the Windows Driver Kit (WDK). A data stream that has no particular format should use KSDATAFORMAT_TYPE_STREAM (defined in ks.h) as the value for its major format.
ACX requirements
Minimum ACX version: 1.0
For more information about ACX versions, see ACX version overview.
Requirements
| Requirement | Value |
|---|---|
| Header | acxdataformat.h |
| IRQL | <= DISPATCH_LEVEL |