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CMediaType.MatchesPartial method

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The MatchesPartial method determines if this media type matches a partially specified media type.

Syntax

BOOL MatchesPartial(
   const CMediaType *ppartial
) const;

Parameters

ppartial

Pointer to the media type to match.

Return value

Returns TRUE if the media types match. Otherwise, returns FALSE.

Remarks

The media type specified by ppartial can have a value of GUID_NULL for the major type, subtype, or format type. Any members with GUID_NULL values are not tested. (In effect, GUID_NULL acts as a wildcard.) Members with values other than GUID_NULL must match for the media type to match.

Requirements

Requirement Value
Header
Mtype.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CMediaType Class