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Xfontcache(3)                                                                                  Xfontcache(3)



NAME
       Xfontcache - X-TrueType font cache extension client library

SYNOPSIS
       #include <X11/extensions/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, FontCacheSettings *cache info);

       Status FontCacheChangeCacheSettings(Display *dpy, FontCacheSettings *cache info);

       Status FontCacheGetCacheStatistics(Display *dpy, FontCacheStatistics *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 extension is available on the given display.  A
       client must call FontCacheQueryExtension before calling any other Xfontcache  function  in  order  to
       negotiate a compatible protocol version; otherwise the client will get undefined behavior (Xfontcache
       may or may not work).

       FontCacheQueryVersion returns True if the request succeeded; the values of the major and minor proto-col protocol
       col versions supported 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
       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 incompatible changes are done to the API without notice. Use with care.



X Version 11                                 libXfontcache 1.0.4                               Xfontcache(3)