XListFonts 3X11 __xorgversion__ XLIB FUNCTIONS XListFonts XFreeFontNames XListFontsWithInfo XFreeFontInfo obtain or free font names and information char **XListFonts ( Display * display , char * pattern , int maxnames , int * actual_count_return ); int XFreeFontNames ( char *list [ ] ); char **XListFontsWithInfo ( Display *display , char *pattern , int maxnames , int *count_return , XFontStruct **info_return ); int XFreeFontInfo( char **names , XFontStruct *free_info, int actual_count ); actual_count Specifies the actual number of font names. actual_count_return Returns the actual number of font names. count_return Returns the actual number of matched font names. display Specifies the connection to the X server. info_return Returns the font information. free_info Specifies the font information. list Specifies the array of strings you want to free. maxnames Specifies the maximum number of names to be returned. names Specifies the list of font names. pattern Specifies the null-terminated pattern string that can contain wildcard characters. The  XListFonts  function returns an array of available font names (as controlled by the font search path; see  XSetFontPath ) that match the string you passed to the pattern argument. The pattern string can contain any characters, but each asterisk (*) is a wildcard for any number of characters, and each question mark (?) is a wildcard for a single character. If the pattern string is not in the Host Portable Character Encoding, the result is implementation-dependent. Use of uppercase or lowercase does not matter. Each returned string is null-terminated. If the data returned by the server is in the Latin Portable Character Encoding, then the returned strings are in the Host Portable Character Encoding. Otherwise, the result is implementation-dependent. If there are no matching font names,  XListFonts  returns NULL. The client should call  XFreeFontNames  when finished with the result to free the memory. The  XFreeFontNames  function frees the array and strings returned by  XListFonts  or  XListFontsWithInfo . The  XListFontsWithInfo  function returns a list of font names that match the specified pattern and their associated font information. The list of names is limited to size specified by maxnames. The information returned for each font is identical to what  XLoadQueryFont  would return except that the per-character metrics are not returned. The pattern string can contain any characters, but each asterisk (*) is a wildcard for any number of characters, and each question mark (?) is a wildcard for a single character. If the pattern string is not in the Host Portable Character Encoding, the result is implementation-dependent. Use of uppercase or lowercase does not matter. Each returned string is null-terminated. If the data returned by the server is in the Latin Portable Character Encoding, then the returned strings are in the Host Portable Character Encoding. Otherwise, the result is implementation-dependent. If there are no matching font names,  XListFontsWithInfo  returns NULL. To free only the allocated name array, the client should call  XFreeFontNames . To free both the name array and the font information array or to free just the font information array, the client should call  XFreeFontInfo . The  XFreeFontInfo  function frees a font structure or an array of font structures and optionally an array of font names. If NULL is passed for names, no font names are freed. If a font structure for an open font (returned by  XLoadQueryFont ) is passed, the structure is freed, but the font is not closed; use  XUnloadFont  to close the font. XLoadFont(3X11), XSetFontPath(3X11) Xlib - C Language X Interface