use Win32::OLE('in');
use constant wbemFlagReturnImmediately => 0x10;
use constant wbemFlagForwardOnly => 0x20;

$computer = ".";
$objWMIService = Win32::OLE->GetObject
    ("winmgmts:\\\\$computer\\root\\CIMV2") or die "WMI connection failed.\n";
$colItems = $objWMIService->ExecQuery
    ("SELECT * FROM Win32_DesktopMonitor","WQL",wbemFlagReturnImmediately | wbemFlagForwardOnly);

foreach my $objItem (in $colItems)
{
      print "Availability: $objItem->{Availability}\n";
      print "Bandwidth: $objItem->{Bandwidth}\n";
      print "Caption: $objItem->{Caption}\n";
      print "Config Manager Error Code: $objItem->{ConfigManagerErrorCode}\n";
      print "Config Manager User Config: $objItem->{ConfigManagerUserConfig}\n";
      print "Creation Class Name: $objItem->{CreationClassName}\n";
      print "Description: $objItem->{Description}\n";
      print "Device ID: $objItem->{DeviceID}\n";
      print "Display Type: $objItem->{DisplayType}\n";
      print "Error Cleared: $objItem->{ErrorCleared}\n";
      print "Error Description: $objItem->{ErrorDescription}\n";
      print "Install Date: $objItem->{InstallDate}\n";
      print "Is Locked: $objItem->{IsLocked}\n";
      print "Last Error Code: $objItem->{LastErrorCode}\n";
      print "Monitor Manufacturer: $objItem->{MonitorManufacturer}\n";
      print "Monitor Type: $objItem->{MonitorType}\n";
      print "Name: $objItem->{Name}\n";
      print "Pixels Per X Logical Inch: $objItem->{PixelsPerXLogicalInch}\n";
      print "Pixels Per Y Logical Inch: $objItem->{PixelsPerYLogicalInch}\n";
      print "PNP Device ID: $objItem->{PNPDeviceID}\n";
      print "Power Management Capabilities: " . join(",", (in $objItem->{PowerManagementCapabilities})) . "\n";
      print "Power Management Supported: $objItem->{PowerManagementSupported}\n";
      print "Screen Height: $objItem->{ScreenHeight}\n";
      print "Screen Width: $objItem->{ScreenWidth}\n";
      print "Status: $objItem->{Status}\n";
      print "Status Info: $objItem->{StatusInfo}\n";
      print "System Creation Class Name: $objItem->{SystemCreationClassName}\n";
      print "System Name: $objItem->{SystemName}\n";
      print "\n";
}