isValid = MessageFrame:SetFont("filename", fontHeight, "flags")

Sets the font instance's basic font properties. Font files included with the default WoW client:

• Fonts\FRIZQT__.TTF - Friz Quadrata, used by default for player names and most UI text
  
• Fonts\ARIALN.TTF - Arial Narrow, used by default for chat windows, action button numbers, etc.
  
• Fonts\skurri.ttf - Skurri, used by default for incoming damage/parry/miss/etc indicators on the Player and Pet frames
  
• Fonts\MORPHEUS.ttf - Morpheus, used by default for quest title headers, mail, and readable in-game objects.

Font files can also be included in addons.


Signature:

Arguments:

• filename - Path to a font file (string)
  
• fontHeight - Height (point size) of the font to be displayed (in pixels) (number)
  
• flags - Additional properties for the font specified by one or more (separated by commas) of the following tokens: (string)
  MONOCHROME - Font is rendered without antialiasing
  • OUTLINE - Font is displayed with a black outline
  • THICKOUTLINE - Font is displayed with a thick black outline

Returns:

• isValid - 1 if filename refers to a valid font file; otherwise nil (1nil)