C# Signature:

[DllImport("user32.dll")]
static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum,   ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);

VB.NET Signature:

<DllImport("user32.dll")> _
Private Shared Function EnumDisplayDevices(ByVal lpDevice As String, ByVal iDevNum As UInteger, ByRef lpDisplayDevice As DISPLAY_DEVICE, ByVal dwFlags As UInteger) As Boolean
End Function

User-Defined Types:

None.

Notes:

DISPLAY_DEVICE

Tips & Tricks:

Please add some!

Sample Code:

    DISPLAY_DEVICE d=new DISPLAY_DEVICE();
    d.cb=Marshal.SizeOf(d);
    try {
        for (int id=0;EnumDisplayDevices(null, id, ref d, 0);id++) {
            Console.WriteLine(
                String.Format("{0}, {1}, {2}, {3}, {4}, {5}",
                         id,
                         d.DeviceName,
                         d.DeviceString,
                         d.StateFlags,
                         d.DeviceID,
                         d.DeviceKey
                         )
                          );
            d.cb=Marshal.SizeOf(d);
        }
    } catch (Exception ex) {
        Console.WriteLine(String.Format("{0}",ex.ToString()));
    }

Alternative Managed API:

    [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Unicode)]
    static extern bool EnumDisplayDevicesW(string lpDevice, uint iDevNum,
        ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);