#include "ltmm.h"
C Syntax |
HRESULT IltmmPlay_get_ProgramCount(pPlay, pVal) |
C++ Syntax |
HRESULT get_ProgramCount(pVal) |
IltmmPlay *pPlay; |
pointer to an interface |
long *pVal; |
pointer to a variable |
Gets the number of programs in the current file.
Parameter | Description | |
pPlay | Pointer to an IltmmPlay interface. | |
pVal | Pointer to a variable to be updated with the number of prgrams. In most cases, this value will be filled with 1. |
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. |
See the Programs and Streams topic for more information on programs and streams. Change the current program by calling IltmmPlay::put_CurrentProgram.
Get the number of streams in the current program by calling IltmmPlay::get_StreamCount.
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. |
Win32, x64
|
|
Closed Captioning |
C++ example:
/* This example will select the last program of a multi-program file. There is no error checking to make the example easier to understand */
/* This example will select the last program of a multi-program file. There is no error checking to make the example easier to understand */
void SelectLastProgram(IltmmPlay *pPlay)
{
long ProgramCount = 0;
pPlay->get_ProgramCount(&ProgramCount);
if(ProgramCount > 1)
{
/* If there is more than one program, select the last program. If there is only one program, you are already on the last program. The program index is 0-based, so the allowed value to pass to IltmmPlay::put_CurrentProgram is between 0 and ProgramCount - 1 */
pPlay->put_CurrentProgram(ProgramCount - 1);
}
}
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