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CMediaType::IsPartiallySpecified

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Microsoft DirectShow 9.0

CMediaType::IsPartiallySpecified

The IsPartiallySpecified method determines if the media type is partially defined. A media type is partial if the major type, subtype, or format type is GUID_NULL.

Syntax

  BOOL IsPartiallySpecified(void) const;

Return Value

Returns TRUE if the media type is partially specified. Otherwise, returns FALSE.

Remarks

The IPin::Connect method can accept partial media types.

The implementation does not actually test the subtype. If there is a specified format type, the media type is not considered partial, even if the subtype is GUID_NULL.

Requirements

**  Header:** Declared in Mtype.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also