public void SetDefaultEndPoint(string deviceId, EDataFlow flow, IEnumerable <ERole> roles, uint processId)
{
Trace.WriteLine($"ExtendedPolicyClient SetDefaultEndPoint {deviceId} [{flow}] {processId}");
try
{
if (string.IsNullOrEmpty(deviceId))
{
return;
}
using var deviceIdStr = HSTRING.FromString(GenerateDeviceId(deviceId, flow));
foreach (var eRole in roles)
{
PolicyConfig.SetPersistedDefaultAudioEndpoint(processId, flow, eRole, deviceIdStr);
}
}
catch (COMException e) when((e.ErrorCode & ErrorConst.COM_ERROR_MASK) == ErrorConst.COM_ERROR_NOT_FOUND)
{
throw new DeviceNotFoundException($"Can't set default as {deviceId}", e, deviceId);
}
catch (Exception ex)
{
Trace.WriteLine($"{ex}");
}
}
static void SetNodeValueString(string str, IXmlDocument xmldoc, IXmlNode node)
{
IXmlText textNode;
using (var hStrign_str = HSTRING.FromString(str))
ComFunctions.CheckHRESULT(xmldoc.CreateTextNode(hStrign_str, out textNode));
AppendNode(node, (IXmlNode)textNode);
}
static IXmlElement CreateElement(IXmlDocument xmldoc, string elementName)
{
IXmlElement element;
using (var hStrign_elementName = HSTRING.FromString(elementName))
ComFunctions.CheckHRESULT(xmldoc.CreateElement(hStrign_elementName, out element));
return(element);
}
static IXmlNodeList GetNodes(IXmlDocument xmldoc, string tagName)
{
IXmlNodeList nodes;
using (var hStrign_tagName = HSTRING.FromString(tagName))
ComFunctions.CheckHRESULT(xmldoc.GetElementsByTagName(hStrign_tagName, out nodes));
return(nodes);
}
public static IAudioPolicyConfigFactory Create()
{
var iid = GuidGenerator.CreateIID(typeof(IAudioPolicyConfigFactory));
using var name = HSTRING.FromString("Windows.Media.Internal.AudioPolicyConfig");
ComBase.RoGetActivationFactory(name, ref iid, out object factory);
return(factory.As <IAudioPolicyConfigFactory>());
}
static void SetImageSrc(IXmlDocument xmldoc, string imagePath)
{
IXmlNode imageNode = GetNode(xmldoc, "image");
IXmlNode srcAttribute;
using (var hString_name = HSTRING.FromString("src"))
ComFunctions.CheckHRESULT(imageNode.Attributes.GetNamedItem(hString_name, out srcAttribute));
SetNodeValueString(imagePath, xmldoc, srcAttribute);
}
static void SetAttribute(IXmlElement node, string attributeName, string attributeValue)
{
using (var hString_attributeName = HSTRING.FromString(attributeName))
using (var hString_attributeValue = HSTRING.FromString(attributeValue))
ComFunctions.CheckHRESULT(node.SetAttribute(hString_attributeName, hString_attributeValue));
}