UlteriusServer.Api.Win32.Display.DisplayInformation C# (CSharp) Method

        public static List<DisplayInformation> DisplayInformation()
        {
            var monitors = new List<DisplayInformation>();
            var d = new DisplayDevice();
            d.cb = Marshal.SizeOf(d);
            try
            {
                for (uint id = 0; EnumDisplayDevices(null, id, ref d, 0); id++)
                {
                    if (d.StateFlags.HasFlag(DisplayDeviceStateFlags.AttachedToDesktop))
                    {
                        var device = d.DeviceName;

                        var vDevMode = new Devmode();
                        var i = 0;
                        var supportedResolutions = new Dictionary<string, List<ResolutionInformation>>();
                        while (EnumDisplaySettings(device, i, ref vDevMode))
                        {
                            var width = vDevMode.dmPelsWidth;
                            var height = vDevMode.dmPelsHeight;
                            var bpp = vDevMode.dmBitsPerPel;
                            var orientation = vDevMode.dmDisplayOrientation.ToString();
                            var freq = vDevMode.dmDisplayFrequency;
                            var resolutionKey = $"{width}x{height}";
                            var resolution = new ResolutionInformation
                            {
                                BitsPerPixel = bpp,
                                Frequency = freq,
                                Height = height,
                                Width = width,
                                Orientation = orientation
                            };
                            if (supportedResolutions.ContainsKey(resolutionKey))
                            {
                                supportedResolutions[resolutionKey].Add(resolution);
                            }
                            else
                            {
                                supportedResolutions.Add(resolutionKey, new List<ResolutionInformation>());
                                supportedResolutions[resolutionKey].Add(resolution);
                            }
                            i++;
                        }
                        var cDevMode = new Devmode();
                        EnumDisplaySettings(device, ENUM_CURRENT_SETTINGS, ref cDevMode);

                        var currentResolution = new ResolutionInformation
                        {
                            BitsPerPixel = cDevMode.dmBitsPerPel,
                            Frequency = cDevMode.dmDisplayFrequency,
                            Height = cDevMode.dmPelsHeight,
                            Width = cDevMode.dmPelsWidth,
                            Orientation = cDevMode.dmDisplayOrientation.ToString()
                        };
                        var monitor = new DisplayInformation
                        {
                            Primary = d.StateFlags.HasFlag(DisplayDeviceStateFlags.PrimaryDevice),
                            Attached = d.StateFlags.HasFlag(DisplayDeviceStateFlags.AttachedToDesktop),
                            Removable = d.StateFlags.HasFlag(DisplayDeviceStateFlags.Removable),
                            VgaCompatible = d.StateFlags.HasFlag(DisplayDeviceStateFlags.VgaCompatible),
                            MirroringDriver = d.StateFlags.HasFlag(DisplayDeviceStateFlags.MirroringDriver),
                            MultiDriver = d.StateFlags.HasFlag(DisplayDeviceStateFlags.MultiDriver),
                            ModesPruned = d.StateFlags.HasFlag(DisplayDeviceStateFlags.ModesPruned),
                            Remote = d.StateFlags.HasFlag(DisplayDeviceStateFlags.Remote),
                            Disconnect = d.StateFlags.HasFlag(DisplayDeviceStateFlags.Disconnect),
                            FriendlyName = $"{GetAllMonitorsFriendlyNames().ElementAt((int) id)} on {d.DeviceString}",
                            SupportedResolutions = supportedResolutions,
                            CurrentResolution = currentResolution,
                            DeviceName = device
                        };
                        monitors.Add(monitor);
                        d.cb = Marshal.SizeOf(d);
                        EnumDisplayDevices(d.DeviceName, 0, ref d, 0);
                    }
                    d.cb = Marshal.SizeOf(d);
                }
            }
            catch (Exception ex)
            {
                if (Debugger.IsAttached)
                {
                    Console.WriteLine($"{ex}");
                }
            }
            return monitors;
        }