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X11R7.4 - man page for xfreefontnames (x11r4 section 3)

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XListFonts(3)				  XLIB FUNCTIONS			    XListFonts(3)

NAME
       XListFonts, XFreeFontNames, XListFontsWithInfo, XFreeFontInfo - obtain or free font names
       and information

SYNTAX
       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);

ARGUMENTS
       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 charac-
		 ters.

DESCRIPTION
       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 argu-
       ment.  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 char-
       acter.  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 XList-
       FontsWithInfo.

       The XListFontsWithInfo function returns a list of font names that match the specified pat-
       tern and their associated font information.  The list of names is limited to size speci-
       fied by maxnames.  The information returned for each font is identical to what XLoadQuery-
       Font 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 pat-
       tern 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 Encod-
       ing, then the returned strings are in the Host Portable Character Encoding.  Otherwise,
       the result is implementation-dependent.	If there are no matching font names, XList-
       FontsWithInfo 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.

       Note that XListFontsWithInfo is not thread-safe. If other threads make X requests on the
       same Display, then this function's behavior is undefined.

SEE ALSO
       XLoadFont(3X11), XSetFontPath(3X11)
       Xlib - C Language X Interface

X Version 11				   libX11 1.2.1 			    XListFonts(3)
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