Xfontcache(3) UNIX Programmer's Manual Xfontcache(3)
NAME
Xfontcache - X-TrueType font cache extension client library
SYNOPSIS
#include <X11/extension/FontCache.h>
typedef struct {
long himark;
long lowmark;
long balance;
} FontCacheSettings, *FontCacheSettingsPtr;
struct cacheinfo {
long hits;
long misshits;
long purged;
long usage;
};
typedef struct {
long purge_runs;
long purge_stat;
long balance;
struct cacheinfof;
struct cacheinfov;
} FontCacheStatistics, *FontCacheStatisticsPtr;
Bool FontCacheQueryExtension(Display *dpy, int *event_basep,
int *error_basep);
Status FontCacheQueryVersion(Display *dpy, int
*major_versionp, int *minor_versionp);
Status FontCacheGetCacheSettings(Display *dpy, FontCacheSet-
tings *cache info);
Status FontCacheChangeCacheSettings(Display *dpy,
FontCacheSettings *cache info);
Status FontCacheGetCacheStatistics(Display *dpy, FontCacheS-
tatistics *cache statistics info);
DESCRIPTION
FontCache is an extension that is used by X-TrueType to
cache informations about fonts.
FontCacheQueryExtension returns True if the FontCache exten-
sion is available on the given display. A client must call
FontCacheQueryExtension before calling any other Xfontcache
function in order to negotiate a compatible protocol ver-
sion; otherwise the client will get undefined behavior
(Xfontcache may or may not work).
XFree86 Version 4.5.0 1
Xfontcache(3) UNIX Programmer's Manual Xfontcache(3)
FontCacheQueryVersion returns True if the request succeeded;
the values of the major and minor protocol versions sup-
ported by the server are returned in major_versionp and
minor_versionp .
FontCacheGetCacheSettings should be documented here. Returns
True on success or False on failure.
FontCacheChangeCacheSettings should be documented here.
Returns True on success or False on failure.
FontCacheGetCacheStatistics should be documented here.
Returns True on success or False on failure.
ERRORS
FontCacheChangeCacheSettings will return BadValue if passed
an illegal parameters for lowmark, himark or balance fields.
SEE ALSO
Xlib(1), X(7)
AUTHOR
Akio Morita, X-TrueType team, Nozomi Ytow.
STABILITY
This API is considered as experimental. The Xfontcache
library major revision may be incremented whenever incompa-
tible changes are done to the API without notice. Use with
care.
XFree86 Version 4.5.0 2