private static IEnumerable <IMonitor> EnumerateMonitors(List <DeviceItemPlus> deviceItems)
{
if (!(deviceItems?.Any() == true))
{
yield break;
}
// Obtained by DDC/CI
foreach (var handleItem in DeviceContext.GetMonitorHandles())
{
foreach (var physicalItem in MonitorConfiguration.EnumeratePhysicalMonitors(handleItem.MonitorHandle))
{
int index = -1;
if (physicalItem.IsSupported)
{
index = deviceItems.FindIndex(x =>
(x.DisplayIndex == handleItem.DisplayIndex) &&
(x.MonitorIndex == physicalItem.MonitorIndex) &&
string.Equals(x.Description, physicalItem.Description, StringComparison.OrdinalIgnoreCase));
}
if (index < 0)
{
physicalItem.Handle.Dispose();
continue;
}
var deviceItem = deviceItems[index];
yield return(new DdcMonitorItem(
deviceInstanceId: deviceItem.DeviceInstanceId,
description: deviceItem.AlternateDescription,
displayIndex: deviceItem.DisplayIndex,
monitorIndex: deviceItem.MonitorIndex,
handle: physicalItem.Handle,
useLowLevel: physicalItem.IsLowLevelSupported));
deviceItems.RemoveAt(index);
if (deviceItems.Count == 0)
{
yield break;
}
}
}
// Obtained by WMI
var installedItems = DeviceInstallation.EnumerateInstalledMonitors().ToArray();
foreach (var desktopItem in MSMonitor.EnumerateDesktopMonitors())
{
foreach (var installedItem in installedItems)
{
int index = -1;
if (desktopItem.BrightnessLevels.Any())
{
index = deviceItems.FindIndex(x =>
string.Equals(x.DeviceInstanceId, desktopItem.DeviceInstanceId, StringComparison.OrdinalIgnoreCase) &&
string.Equals(x.DeviceInstanceId, installedItem.DeviceInstanceId, StringComparison.OrdinalIgnoreCase));
}
if (index < 0)
{
continue;
}
var deviceItem = deviceItems[index];
yield return(new WmiMonitorItem(
deviceInstanceId: deviceItem.DeviceInstanceId,
description: deviceItem.AlternateDescription,
displayIndex: deviceItem.DisplayIndex,
monitorIndex: deviceItem.MonitorIndex,
brightnessLevels: desktopItem.BrightnessLevels,
isRemovable: installedItem.IsRemovable));
deviceItems.RemoveAt(index);
if (deviceItems.Count == 0)
{
yield break;
}
}
}
// Unreachable neither by DDC/CI nor by WMI
foreach (var deviceItem in deviceItems)
{
yield return(new UnreachableMonitorItem(
deviceInstanceId: deviceItem.DeviceInstanceId,
description: deviceItem.AlternateDescription,
displayIndex: deviceItem.DisplayIndex,
monitorIndex: deviceItem.MonitorIndex,
isInternal: deviceItem.IsInternal));
}
}