The 'fonts' property

Read-only, nested vector of character vectors

Valid for: System, Printer (Windows only)

The read-only property fonts applies to the System object. It returns a nested vector containing the names of the screen fonts installed on the system:

      '#' ⎕WI 'fonts'
Abadi MT Condensed
Abadi MT Condensed Extra Bold
Abadi MT Condensed Light
Algerian
American Uncial
Andy
APL385 Unicode
APLX Upright
Arial
..etc

(Note that the fact that a font is installed does not guarantee that it is available in a particular size, style and character set).

Under Windows only, the fonts property also applies to the Printer object. It returns a nested vector of the names of the fonts installed on the currently-selected printer, together with the TrueType fonts which can be downloaded to the printer.