This class locates in System.Drawing.Printing namespace
so you need to add reference System.Drawing and then import it with using statement:
To get all the printers available,you need to iterate the string values through PrinterSettings
Add a ListBox to your windows application and then use foreach statement for iteration:
This will show you all the available Printers installed on your computer as seen below:
Because i've not installed any physical printers on my computer it shows the printer services.