IltmmWMMutualExclusion::get_Type

#include "ltmm.h"

C Syntax

HRESULT IltmmWMMutualExclusion_get_Type(pMutualExclusion, pVal)

C++ Syntax

HRESULT get_Type(pVal)

IltmmWMMutualExclusion *pMutualExclusion;

pointer to an interface

BSTR *pVal;

pointer to a string

Retrieves a CLSID string that identifies the type of mutual exclusion.

Parameter

Description

pMutualExclusion

Pointer to an IltmmWMMutualExclusion interface.

pVal

Pointer to a string to be updated with the CLSID string that identifies the type of mutual exclusion.

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 string retrieved by this function is a CLSID string. Possible values are:

Type

Description

String

Language

Mutual exclusion is based on bit rate; streams might differ only in bit rate.

"{D6E22A00-35DA-11D1-9034-00A0C90349BE}"

Bitrate

Mutual exclusion is based on language; streams are recorded with different languages.

"{D6E22A01-35DA-11D1-9034-00A0C90349BE}"

Presentation

Mutual exclusion is based on aspect ratio; streams have different aspect ratios of the video frame.

"{D6E22A02-35DA-11D1-9034-00A0C90349BE}"

Unknown

Custom mutual exclusion.

"{D6E22A03-35DA-11D1-9034-00A0C90349BE}"

Call SysFreeString to free the memory allocated for the string when it is no longer needed.

For more information, refer to the Microsoft documentation for IWMMutualExclusion::GetType .

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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