IltmmDevices::get_Selection

#include "ltmm.h"

C Syntax

HRESULT IltmmDevices__get_Selection(pDevices, pVal)

C++ Syntax

HRESULT get_Selection(pVal)

 

IltmmDevices *pDevices;

/* pointer to an interface */

long *pVal;

/* index */

Retrieves the index of the currently selected device.

Parameter

Description

pDevices

Pointer to an IltmmDevices interface.

pVal

Pointer to a variable that receives the zero based index of the currentlt selected device. A value of –1 indicates that no device 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 device that is currently being used by the collection’s 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.

Platforms

Win32, x64

See Also

Elements:

IltmmDevices::get_Count, IltmmDevices::Item, IltmmDevices::put_Selection

Topics:

Multimedia Function Group

Example

For an example, refer to Selecting ltmmCapture Object Devices for C.

For an example, refer to Selecting ltmmCapture Object Devices for C++.