References ▼
Gets the number of streams of the specified stream type in the current program.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmPlay_get_StreamCount(pPlay, streamType, pVal) |
| C++ | HRESULT get_StreamCount(streamType, pVal) |
Pointer to an IltmmPlay interface.
The type of stream you're interested in. Currently, only two stream types are supported: Video (ltmmPlay_Stream_Video) and Audio (ltmmPlay_Stream_Audio).
Pointer to a variable to be updated with the number of streams of the specified streamType.
| Value | Meaning |
|---|---|
| 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.
This property returns the number of streams of the specified type in the current program. You can then select which streams to play by calling IltmmPlay::put_SelectedStream.
If you change the current program using IltmmPlay::put_CurrentProgram, the number of streams can change. So you will need to call IltmmPlay::get_StreamCount again.
Win32, x64.
| Language | Example |
|---|---|
| C++ | IltmmPlay::get_StreamCount |
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