Ever needed to know the current screen resolution or related screen information?
Here's an easy way of getting that information:
Add-Type -AssemblyName System.Windows.Forms [System.Windows.Forms.Screen]::AllScreens [System.Windows.Forms.Screen]::PrimaryScreen
Note that AllScreens returns a screen object for each active screen, so you can also use this to find out the number of screens in use:
[System.Windows.Forms.Screen]::AllScreens | Measure-Object | Select-Object -ExpandProperty Count