XFreeFont()(display, font_struct)
      Display *display;
      XFontStruct *font_struct;
| display | Specifies the connection to the X server. | 
| font_struct | Specifies the storage associated with the font. | 
XFreeFont() can generate a BadFont error.
| BadFont | A value for a font argument does not name a defined font (or, in some cases, GContext). |