Available Resolutions For a specific Screen

Question

I might have 2 monitor/screens connected to my machine. I want to know all Avaliable resolutions for a specific screen (I have an instance of type System.Windows.Forms.Screen).

I've seen the following: How to list available video modes using C#?

List of valid resolutions for a given Screen?

but they all give results for all monitors and not just a specific one. Any suggestions? Thanks!!!

Edit 1:

This is the info about my 2 screens:

Answer 1

In the first of those links you're told about EnumDisplaySettings. Take a few seconds to lookup that function and the FIRST PARAMETER is the

string that specifies the display device about whose graphics mode the function will obtain information.

Here's a sample class to fetch information about displays. I've deliberately omitted DEVMODE since you've already got it.

public class NativeMethods
{
    [DllImport("user32.dll")]
    public static extern bool EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE devMode);
    [DllImport("user32.dll")]
    public static extern bool EnumDisplayDevices(string deviceName, int modeNum, ref DISPLAY_DEVICE displayDevice, int flags);
}


[StructLayout(LayoutKind.Sequential)]
public struct DISPLAY_DEVICE
{
    public int cb;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
    public string DeviceName;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
    public string DeviceString;
    public int StateFlags;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
    public string DeviceID;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
    public string DeviceKey;
}

static class Display
{
    public static List<DISPLAY_DEVICE> GetGraphicsAdapters()
    {
        int i = 0;
        DISPLAY_DEVICE displayDevice = new DISPLAY_DEVICE();
        List<DISPLAY_DEVICE> result = new List<DISPLAY_DEVICE>();
        displayDevice.cb = Marshal.SizeOf(displayDevice);
        while (NativeMethods.EnumDisplayDevices(null, i, ref displayDevice, 1))
        {
            result.Add(displayDevice);
            i++;
        }

        return result;
    }

    public static List<DISPLAY_DEVICE> GetMonitors(string graphicsAdapter)
    {

        DISPLAY_DEVICE displayDevice = new DISPLAY_DEVICE();
        List<DISPLAY_DEVICE> result = new List<DISPLAY_DEVICE>();
        int i = 0;
        displayDevice.cb = Marshal.SizeOf(displayDevice);
        while (NativeMethods.EnumDisplayDevices(graphicsAdapter, i, ref displayDevice, 0))
        {
            result.Add(displayDevice);
            i++;
        }

        return result;
    }

    public static List<DEVMODE> GetDeviceModes(string graphicsAdapter)
    {
        int i = 0;
        DEVMODE devMode = new DEVMODE();
        List<DEVMODE> result = new List<DEVMODE>();
        while (NativeMethods.EnumDisplaySettings(graphicsAdapter, i, ref devMode))
        {
            result.Add(devMode);
            i++;
        }
        return result;
    }
}