XListFonts(3X11) XLIB FUNCTIONS XListFonts(3X11)
NAME
XListFonts, XFreeFontNames, XListFontsWithInfo, XFree-
FontInfo - obtain or free font names and information
SYNTAX
char **XListFonts(display, pattern, maxnames,
actualcountreturn)
Display *display;
char *pattern;
int maxnames;
int *actualcountreturn;
XFreeFontNames(list)
char *list[];
char **XListFontsWithInfo(display, pattern, maxnames,
countreturn, inforeturn)
Display *display;
char *pattern;
int maxnames;
int *countreturn;
XFontStruct **inforeturn;
XFreeFontInfo(names, freeinfo, actualcount)
char **names;
XFontStruct *freeinfo;
int actualcount;
ARGUMENTS
actualcount
Specifies the actual number of matched font
names returned by XListFontsWithInfo.
actualcountreturn
Returns the actual number of font names.
countreturn
Returns the actual number of matched font names.
display Specifies the connection to the X server.
inforeturn
Returns the font information.
freeinfo Specifies the font information returned by
XListFontsWithInfo.
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 returned by
XListFontsWithInfo.
X Version 11 Release 5 1
XListFonts(3X11) XLIB FUNCTIONS XListFonts(3X11)
pattern Specifies the null-terminated pattern string
that can contain wildcard characters.
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 pat-
tern argument. The pattern string can contain any charac-
ters, 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 imple-
mentation 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 associ-
ated 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 informa-
tion array, the client should call XFreeFontInfo.
The XFreeFontInfo function frees the the font information
array. To free an XFontStruct structure without closing
the font, call XFreeFontInfo with the names argument spec-
ified as NULL.
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XListFonts(3X11) XLIB FUNCTIONS XListFonts(3X11)
SEE ALSO
XLoadFont(3X11), XSetFontPath(3X11)
Xlib - C Language X Interface
X Version 11 Release 5 3