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IltmmDVDControl::IsSubpictureStreamEnabled

Summary

Determines if the specified subpicture stream is enabled in the current title.

Syntax

#include "ltmm.h"

Language	Syntax
C	HRESULT IltmmDVDControl_IsSubpictureStreamEnabled(pDVD, stream, pVal)
C++	HRESULT IsSubpictureStreamEnabled(stream, pVal)

Parameters

IltmmDVDControl *pDVD

Pointer to an IltmmDVDControl interface.

long stream

The subpicture stream to check.

VARIANT_BOOL *pVal

Pointer to a variable that receives a value that represents the status of the specified subpicture stream. Possible values are:

Setting	Description
VARIANT_TRUE	Stream is enabled
VARIANT_FALSE	Stream is disabled

Returns

Value	Meaning
S_OK	The function ran successfully.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

To determine the number of available subpicture streams, call IltmmDVDControl::get_SubpictureStreamsAvailable.

Call IltmmDVDControl::get_CurrentSubpictureStream to retrieve the current subpicture stream.

To set the current subpicture stream, call IltmmDVDControl::put_CurrentSubpictureStream.

The title currently being played determines which subpicture streams are enabled and disabled.

While setting a disabled subpicture stream as the current subpicture stream will not return an error, the program will not display subpicture data until it plays a title that enables the stream.

For more detailed information, refer to the Microsoft documentation for IDvdInfo2::IsSubpictureStreamEnabled.

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.

Example

Language	Example
C	IltmmDVDControl::GetButtonAtPosition
C++	IltmmDVDControl::GetButtonAtPosition

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