XListFonts(3X11) X Version 11 (Release 6.6) XListFonts(3X11)
NAME
XListFonts, XFreeFontNames, XListFontsWithInfo,
XFreeFontInfo - obtain or free font names and information
SYNTAX
char **XListFonts(display, pattern, maxnames,
actual_count_return)
Display *display;
char *pattern;
int maxnames;
int *actual_count_return;
XFreeFontNames(list)
char *list[];
char **XListFontsWithInfo(display, pattern, maxnames,
count_return, info_return)
Display *display;
char *pattern;
int maxnames;
int *count_return;
XFontStruct **info_return;
XFreeFontInfo(names, free_info, actual_count)
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.
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names Specifies the list of font names.
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
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.
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XListFonts(3X11) X Version 11 (Release 6.6) XListFonts(3X11)
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.
SEE ALSO
XLoadFont(3X11), XSetFontPath(3X11)
Xlib - C Language X Interface
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