IMFExtendedCameraControl：：CommitSettings 方法 (mfidl.h)

将配置的控件设置提交到相机驱动程序。

语法

HRESULT CommitSettings();

返回值

如果成功，则返回 S_OK。

注解

以下示例演示如何设置 KSCAMERA_EXTENDEDPROP_VIDEOTORCH_ON 标志并提交设置。

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());
    }
}

要求

最低受支持的客户端	Windows 10内部版本 20348
最低受支持的服务器	Windows 10内部版本 20348
标头	mfidl.h