XListFonts(3X11) X Version 11(Release 5) 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 matched font names returned by
XListFontsWithInfo.
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 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.
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XListFonts(3X11) X Version 11(Release 5) 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 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 the the font information array. To free
an XFontStruct structure without closing the font, call XFreeFontInfo
with the names argument specified as NULL.
SEE ALSO
XLoadFont(3X11), XSetFontPath(3X11)
Xlib - C Language X Interface
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