public static string[] GetSystemFontFamilies(
	IReadOnlyList<string> localeList
)

Parameters

localeList

Type: System.Collections.GenericIReadOnlyListString

Return Value

Font family names are locale-dependent. For each font, this method returns the first available of:

• The specified list of locales, in order
• en-us
• Whatever is the first name enumerated for the font.

An application's environment has a list of locales ordered by user preference.

Using this in C# looks like:

using Windows.Globalization;

...

string[] fontFamilyNames = CanvasTextFormat.GetSystemFontFamilies(ApplicationLanguages.Languages);

Passing a null locale list is valid, and is equivalent to using the GetSystemFontFamilies overload.

Reference