XListFonts(3X11)XListFonts(3X11)NAME
XListFonts, XFreeFontNames, XListFontsWithInfo, XFreeFontInfo - obtain
or free font names and information
SYNOPSIS
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
Specifies the actual number of font names. Returns the actual number
of font names. Returns the actual number of matched font names. Spec‐
ifies the connection to the X server. Returns the font information.
Specifies the font information. Specifies the array of strings you
want to free. Specifies the maximum number of names to be returned.
Specifies the list of font names. Specifies the null-terminated pat‐
tern 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 con‐
tain 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 Porta‐
ble 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 XFree‐
FontNames. 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.
SEE ALSOXLoadFont(3X11), XSetFontPath(3X11)
Xlib -- C Language X Interface
XListFonts(3X11)
