Also known as an encoder , this is a module or algorithm to compress data. Playing that data back requires a decompressor, or decoder .

Also known as compressor, this is a module or algorithm to compress data. Playing that data back requires a decompressor, or decoder.

Also known as a decompressor, this is a module or algorithm to decompress data.

IltmmCompressors::get_Selection

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#include "ltmm.h"

C Syntax	HRESULT IltmmCompressors_get_Selection(pCompressors, pVal)
C++ Syntax	HRESULT get_Selection(pVal)

IltmmCompressors *pCompressors;	/* pointer to an interface */
long *pVal;	/* pointer to a variable */

Retrieves the index of the currently selected compressor .

Parameter	Description
pCompressors	Pointer to an IltmmCompressors interface.
pVal	Pointer to a variable that receives the zero based index of the currentlt selected compressor. A value of 1 indicates that no compressor is currently selected.

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 will return the index of the compressor that is currently being used by the collections parent object.

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

Elements:	IltmmCompressors::get_Count, IltmmCompressors::Item, IltmmCompressors::put_Selection
Topics:	Multimedia Function Group