public IEnumerable<DetailedScreen> GetScreens()
{
var screens = new List<DetailedScreen>();
int index = 1;
var d = new DISPLAY_DEVICE();
d.cb = Marshal.SizeOf(d);
try
{
for (uint id = 0; EnumDisplayDevices(null, id, ref d, 0); id++)
{
d.cb = Marshal.SizeOf(d);
var x = new DISPLAY_DEVICE();
x.cb = Marshal.SizeOf(x);
//Get the actual monitor
EnumDisplayDevices(d.DeviceName, 0, ref x, 0);
if (string.IsNullOrEmpty(x.DeviceName) || string.IsNullOrEmpty(x.DeviceString))
continue;
var screen = new DetailedScreen { FriendlyName = x.DeviceString, Index = index++ };
var mode = new DEVMODE();
mode.dmSize = (ushort)Marshal.SizeOf(mode);
if (EnumDisplaySettings(d.DeviceName, -1, ref mode))
{
screen.Width = (int)mode.dmPelsWidth;
screen.Height = (int)mode.dmPelsHeight;
screen.Top = mode.dmPosition.y;
screen.Left = mode.dmPosition.x;
}
screens.Add(screen);
}
}
catch (Exception)
{
//log this
}
var biggestScreen = screens.OrderByDescending(s => s.Width).FirstOrDefault();
if (biggestScreen != null)
{
var maxWidth = biggestScreen.Width;
foreach (var s in screens)
{
s.RelativeWidth = 200 * (s.Width / maxWidth);
s.RelativeHeight = s.RelativeWidth * (s.Height / s.Width);
s.Top *= (s.RelativeHeight / s.Height);
}
}
screens = screens.OrderBy(s => s.Left).ToList();
return screens;
}
private static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);