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Retrieves the index of the currently selected device.
#include "ltmf.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmfDevices_get_Selection(pDevices, pVal) |
| C++ | HRESULT get_Selection(pVal) |
Pointer to an IltmfDevices interface.
Pointer to a variable that receives the zero based index of the currently selected device. A value of 1 indicates that no device is currently selected.
| Value | Meaning |
|---|---|
| S_OK | The function was successful. |
| <> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the MediaFoundation documentation. |
This function will return the index of the device that is currently being used by the collections parent object.
Win32, x64.
For an example, refer to Selecting ltmfCapture Object Devices for C++.
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