IltmmMediaSampleDisp::GetData

#include "ltmm.h"

C Syntax

HRESULT IltmmMediaSampleDisp__getData(pMediaSampleDisp, DataSize, Data)

C++ Syntax

HRESULT GetData(DataSize, Data)

 

IltmmMediaSampleDisp *pMediaSampleDisp;

/* pointer to an interface */

long DataSize;

/* size of the data */

VARIANT *Data;

/* pointer to a variable */

Retrieves a copy of the actual data in the buffer.

Parameter

Description

pMediaSampleDisp

Pointer to an IltmmMediaSampleDisp interface.

DataSize

Length of data to retrieve, in bytes.

Data

Pointer to a variable to be updated with a VARIANT containing a SAFEARRAY reference. The array is composed of a single dimension of bytes. This array contains a copy of the data in the sample buffer.

Returns

S_OK

The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

If the function succeeds, the caller must free the returned VARIANT by calling the VariantClear function.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:

IltmmMediaSampleDisp::get_ActualDataLength, IltmmMediaSampleDisp::get_Buffer, IltmmMediaSampleDisp::get_BufferSize, IltmmMediaSampleDisp::get_Discontinuity, IltmmMediaSampleDisp::get_Preroll, IltmmMediaSampleDisp::get_SyncPoint, IltmmMediaSampleDisp::GetMediaTime, IltmmMediaSampleDisp::GetMediaType, IltmmMediaSampleDisp::GetTime, IltmmMediaSampleDisp::put_ActualDataLength, IltmmMediaSampleDisp::put_Discontinuity, IltmmMediaSampleDisp::put_Preroll, IltmmMediaSampleDisp::put_SyncPoint, IltmmMediaSampleDisp::ResetMediaTime, IltmmMediaSampleDisp::ResetTime, IltmmMediaSampleDisp::SetData, IltmmMediaSampleDisp::SetMediaTime, IltmmMediaSampleDisp::SetMediaType, IltmmMediaSampleDisp::SetTime

Topics:

Multimedia Function Group

 

IltmmMediaSampleDisp interface

 

ltmmMediaSample object

Example

For a C example, refer to Copying ltmmMediaSample attributes and data for C.

For a C++ example, refer to Copying ltmmMediaSample attributes and data for C++.