Microsoft DirectX 9.0


The GetProperties method retrieves the properties of a media sample.


HRESULT GetProperties(
  DWORD cbProperties,
  BYTE *pbProperties



[in] Length of property data to retrieve, in bytes.


[out] Pointer to a buffer of size cbProperties.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_POINTER NULL pointer argument.


The retrieved data conforms to the format of the AM_SAMPLE2_PROPERTIES structure. You can retrieve a subset of the sample properties by setting cbProperties to a value less than the size of the AM_SAMPLE2_PROPERTIES structure.

For efficiency, the pMediaType member returned in AM_SAMPLE2_PROPERTIES is a pointer to the data stored in the media sample, not a copy of that data. The pointer may become invalid after the sample is passed to another filter, or after the input pin's IMemInputPin::Receive method has completed. Also, do not free the pointer or delete the media type.

See Also