UID | title | ms.date | targetos | description | tech.root | req.assembly | req.construct-type | req.ddi-compliance | req.dll | req.header | req.idl | req.include-header | req.irql | req.kmdf-ver | req.lib | req.max-support | req.namespace | req.redist | req.target-min-winverclnt | req.target-min-winversvr | req.target-type | req.type-library | req.umdf-ver | req.unicode-ansi | topic_type | api_type | api_location | api_name | f1_keywords | dev_langs | |||||||
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NF:mfidl.IMFExtendedCameraControl.GetFlags |
IMFExtendedCameraControl::GetFlags |
11/4/2019 |
Windows |
Queries for property flags on the capture device. |
mf |
function |
mfidl.h |
Windows 10 Build 20348 |
Windows 10 Build 20348 |
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Queries for property flags on the capture device.
A ULONGLONG mapping to property flags. Supported properties and flags are defined in the header file defined in ksmedia.h as constants with the naming convention KSCAMERA_EXTENDEDPROP_. For more information, see KSPROPERTYSETID_ExtendedCameraControl.
Set the property flags on the capture device by calling IMFExtendedCameraControl::SetFlags. Before setting a property flag, you can check for supported capabilities by calling IMFExtendedCameraControl::GetCapabilities. The following example demonstrates querying support for the KSCAMERA_EXTENDEDPROP_VIDEOTORCH_ON capability.
if (FAILED(m_cameraController->GetExtendedCameraControl(MF_CAPTURE_ENGINE_MEDIASOURCE,
KSPROPERTY_CAMERACONTROL_EXTENDED_TORCHMODE,
cameraControl.put())))
{
// Return false to indicate that the Torch Mode control is not available.
return false;
}
ULONGLONG capabilities = cameraControl->GetCapabilities();
// Check if the torch can be turned on.
if (capabilities & KSCAMERA_EXTENDEDPROP_VIDEOTORCH_ON)
{
// Check if the torch is off.
if ((cameraControl->GetFlags() & KSCAMERA_EXTENDEDPROP_VIDEOTORCH_ON) == 0)
{
// Torch is off. Tell the camera to turn it on.
check_hresult(cameraControl->SetFlags(KSCAMERA_EXTENDEDPROP_VIDEOTORCH_ON));
// Write the changed settings to the driver.
check_hresult(cameraControl->CommitSettings());
}
}