IltmmPlay::GetSubObjectDispatch

#include "ltmm.h"

C Syntax

HRESULT IltmmPlay_getSubObjectDispatch(pPlay, ObjType, ppObject)

C++ Syntax

HRESULT GetSubObjectDispatch(ObjType, ppObject)

IltmmPlay *pPlay;

pointer to an interface

long ObjType;

object to retrieve

IDispatch **ppObject;

pointer to a pointer

Retrieves the lDispatch interface for the specified graph object.

Parameter

Description

pPlay

Pointer to an IltmmPlay interface.

ObjType

Value that indicates the graph object to retrieve. For a list of possible values, refer to the ltmmPlay_Source Constants.

ppObject

Pointer to a variable to be updated with a pointer to the lDispatch interface. This interface references the specified graph object.

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

This function is basically the same as IltmmPlay::GetSubObject, but retrieves the objects IDispatch interface instead of IUnknown.

This function was added for languages like FoxPro that will not query for the dispatch interface itself.

If the function succeeds, the user should release the retrieved interface pointer by calling the interfaces Release method.

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

See Also

Elements:

IltmmPlay::GetSubObject

Topics:

Multimedia Function Group

Example

For a C example, refer to the IltmmPlay::GetSubObjectDispatch Example for C.

For a C++ example, refer to the IltmmPlay::GetSubObjectDispatch Example for C++.

Help Version 20.0.2019.3.12
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2019 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Multimedia C API Help