Beispiel #1
0
 public static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref DisplayDevice lpDisplayDevice, DisplayDeviceStateFlags dwFlags);
        public FREObject GetDisplayDevices(FREContext ctx, uint argc, FREObject[] argv)
        {
            var tmp = new FREObject().Init("Vector.<com.tuarua.DisplayDevice>", null);
            var vecDisplayDevices = new FREArray(tmp);

            var dd = new DisplayDevice();

            dd.cb = Marshal.SizeOf(dd);

            _displayDeviceMap.Clear();

            try {
                uint index = 0;
                uint cnt   = 0;
                while (WinApi.EnumDisplayDevices(null, index++, ref dd, 0))
                {
                    var displayDevice  = new FREObject().Init("com.tuarua.DisplayDevice", null);
                    var displayMonitor = new FREObject().Init("com.tuarua.Monitor", null);

                    displayDevice.SetProp("isPrimary",
                                          dd.StateFlags.HasFlag(DisplayDeviceStateFlags.PrimaryDevice));
                    displayDevice.SetProp("isActive",
                                          dd.StateFlags.HasFlag(DisplayDeviceStateFlags.AttachedToDesktop));
                    displayDevice.SetProp("isRemovable", dd.StateFlags.HasFlag(DisplayDeviceStateFlags.Removable));
                    displayDevice.SetProp("isVgaCampatible",
                                          dd.StateFlags.HasFlag(DisplayDeviceStateFlags.VgaCompatible));

                    var monitor = new DisplayDevice();
                    monitor.cb = Marshal.SizeOf(monitor);

                    if (!WinApi.EnumDisplayDevices(dd.DeviceName, index - 1, ref monitor, 0))
                    {
                        continue;
                    }

                    var dm = new Devmode();
                    dm.dmSize = (short)Marshal.SizeOf(dm);
                    if (WinApi.EnumDisplaySettings(dd.DeviceName, WinApi.EnumCurrentSettings, ref dm) == 0)
                    {
                        continue;
                    }

                    var availdm = new Devmode();
                    availdm.dmSize = (short)Marshal.SizeOf(availdm);
                    IList <DisplaySettings> availableDisplaySettings = new List <DisplaySettings>();

                    var freAvailableDisplaySettings = new FREArray(displayDevice.GetProp("availableDisplaySettings"));

                    uint cntAvailableSettings = 0;
                    for (var iModeNum = 0;
                         WinApi.EnumDisplaySettings(dd.DeviceName, iModeNum, ref availdm) != 0;
                         iModeNum++)
                    {
                        var settings = new DisplaySettings {
                            Width       = availdm.dmPelsWidth,
                            Height      = availdm.dmPelsHeight,
                            BitDepth    = Convert.ToInt32(availdm.dmBitsPerPel),
                            RefreshRate = availdm.dmDisplayFrequency
                        };

                        if (HasDisplaySetting(availableDisplaySettings, settings))
                        {
                            continue;
                        }
                        availableDisplaySettings.Add(settings);

                        var displaySettings = new FREObject().Init("com.tuarua.DisplaySettings", null);

                        displaySettings.SetProp("width", availdm.dmPelsWidth);
                        displaySettings.SetProp("height", availdm.dmPelsHeight);
                        displaySettings.SetProp("refreshRate", availdm.dmDisplayFrequency);
                        displaySettings.SetProp("bitDepth", Convert.ToInt32(availdm.dmBitsPerPel));
                        freAvailableDisplaySettings.Set(cntAvailableSettings, displaySettings);
                        cntAvailableSettings++;
                    }

                    displayMonitor.SetProp("friendlyName", monitor.DeviceString);
                    displayMonitor.SetProp("name", monitor.DeviceName);
                    displayMonitor.SetProp("id", monitor.DeviceID);
                    displayMonitor.SetProp("key", monitor.DeviceKey);

                    displayDevice.SetProp("friendlyName", dd.DeviceString);
                    displayDevice.SetProp("name", dd.DeviceName);
                    displayDevice.SetProp("id", dd.DeviceID);
                    displayDevice.SetProp("key", dd.DeviceKey);

                    var currentDisplaySettings = new FREObject().Init("com.tuarua.DisplaySettings", null);

                    currentDisplaySettings.SetProp("width", dm.dmPelsWidth);
                    currentDisplaySettings.SetProp("height", dm.dmPelsHeight);
                    currentDisplaySettings.SetProp("refreshRate", dm.dmDisplayFrequency);
                    currentDisplaySettings.SetProp("bitDepth", Convert.ToInt32(dm.dmBitsPerPel));

                    displayDevice.SetProp("currentDisplaySettings", currentDisplaySettings);
                    displayDevice.SetProp("monitor", displayMonitor);

                    vecDisplayDevices.Set(cnt, displayDevice);

                    _displayDeviceMap.Add(dd.DeviceKey, dd);

                    cnt++;
                }
            }
            catch (Exception e) {
                Trace("ERROR: " + e);
            }

            return(vecDisplayDevices.RawValue);
        }