LEADTOOLS Media Foundation Help
| LEADTOOLS Media Foundation Help > LEADTOOLS Media Foundation Features > Media Foundation Function References > IltmfDevices Interface > IltmfDevices::get_Selection |
#include "ltmf.h"
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C Syntax |
HRESULT IltmfDevices_get_Selection(pDevices, pVal) |
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C++ Syntax |
HRESULT get_Selection(pVal) |
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IltmfDevices *pDevices; |
/* pointer to an interface */ |
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long *pVal; |
/* index */ |
Retrieves the index of the currently selected device.
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Parameter |
Description |
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pDevices |
Pointer to an IltmfDevices interface. |
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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
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S_OK |
The function was successful. |
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<> S_OK |
An error occurred. Refer to the Error Codes or the HRESULT error codes in the MediaFoundation documentation. |
Comments
This function will return the index of the device that is currently being used by the collections parent object.
Required DLLs and Libraries
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LTMF 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
See Also
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Elements: |
IltmfDevices::get_Count, IltmfDevices::Item, IltmfDevices::put_Selection |
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Topics: |
Example
For an example, refer to Selecting ltmfCapture Object Devices for C++.
