Switches the active display to the inactive and vice verse

gistfile1.cs

public void SwitchActiveInactive() {
            GetDisplayInfo();
            // Negative x numbers = left
            ddInactive.dmPosition.x = -1920;
            ddInactive.dmPosition.y = 0;
            ddInactive.dmFields = DM.Position;
            var res = ChangeDisplaySettingsEx(
                szInactiveDeviceName,
                ref ddInactive,
                IntPtr.Zero,
                (int)(CDSFlags.CDS_NORESET | CDSFlags.CDS_UPDATEREGISTRY| CDSFlags.CDS_SET_PRIMARY ), IntPtr.Zero);

            ddActive.dmPosition.x = 0;
            ddActive.dmPosition.y = 0;            
            ddActive.dmPelsHeight = 0;
            ddActive.dmPelsWidth = 0;
            ddActive.dmFields = DM.Position | DM.PelsHeight | DM.PelsWidth;
            ChangeDisplaySettingsEx(szActiveDeviceName, ref ddActive, IntPtr.Zero, (int)CDSFlags.CDS_UPDATEREGISTRY, IntPtr.Zero);
            Console.WriteLine(res.ToString());
            ChangeDisplaySettings(IntPtr.Zero, IntPtr.Zero);            

           
            Console.ReadKey();
        }