#include "ltmm.h"

C Syntax

HRESULT IltmmMultiStreamTarget_WaitForSample(pMultiStreamTarget, lTimeout, Stream);

C++ Syntax

HRESULT WaitForSample(lTimeout, Stream);

IltmmMultiStreamTarget *pMultiStreamTarget;

pointer to an interface

long lTimeout;

time interval

long * Stream;

pointer to a variable

Wait for a sample from any source to get ready.




Pointer to an IltmmMultiStreamTarget interface.


Time-out interval, in milliseconds. The time the function will wait for a sample to be ready. If the time elapses and no sample is ready, the function will return a time-out error code. If lTimeOut is -1, the function's time-out interval never elapses.


Pointer to a variable that will receive the stream number for which the sample is indicated as ready. A stream value of 1 indicates an invalid stream.



The function was successful.

<> S_OK

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


The function must be called in the running state; calling it in the stopped state or after the end of stream is reached will return a wrong state code.

Required DLLs and Libraries


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


Win32, x64

Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Multimedia C API Help