IltmmMediaSampleDisp::get_ActualDataLength

#include "ltmm.h"

C Syntax

HRESULT IltmmMediaSampleDisp_get_ActualDataLength(pMediaSampleDisp, pVal)

C++ Syntax

HRESULT get_ActualDataLength(pVal)

IltmmMediaSampleDisp *pMediaSampleDisp;

pointer to an interface

long *pVal;

pointer to a variable

Gets the length of the valid data in the buffer.

Parameter

Description

pMediaSampleDisp

Pointer to an IltmmMediaSampleDisp interface.

pVal

Pointer to a variable to be updated with the length of the valid data, in bytes.

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

The value retrieved in the pVal parameter should be less than the length of the entire buffer. TO get the length of the entire buffer, use the IltmmMediaSampleDisp::get_BufferSize 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.

Platforms

Win32, x64

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