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

        public static string Rotate(int angle, int width, int height, string deviceName)
        {
            var originalMode = new Devmode();
            originalMode.dmSize = (short) Marshal.SizeOf(originalMode);
            EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, ref originalMode);

            // swap height and width
            var temp = originalMode.dmPelsHeight;
            originalMode.dmPelsHeight = originalMode.dmPelsWidth;
            originalMode.dmPelsWidth = temp;

            originalMode.dmPelsWidth = width;
            originalMode.dmPelsHeight = height;
            switch (angle)
            {
                case 0:
                    originalMode.dmDisplayOrientation = ScreenOrientation.Angle0;
                    break;
                case 90:
                    originalMode.dmDisplayOrientation = ScreenOrientation.Angle90;
                    break;
                case 180:
                    originalMode.dmDisplayOrientation = ScreenOrientation.Angle180;
                    break;
                case 270:
                    originalMode.dmDisplayOrientation = ScreenOrientation.Angle270;
                    break;
            }
            return GetMessageForCode(ChangeDisplaySettingsEx(deviceName, ref originalMode, IntPtr.Zero,
                ChangeDisplaySettingsFlags.CDS_UPDATEREGISTRY, IntPtr.Zero));
        }