MirOS Manual: FontCacheChangeCacheSettings(3), FontCacheGetCacheSettings(3), FontCacheGetCacheStatistics(3), FontCacheQueryExtension(3), FontCacheQueryVersion(3), Xfontcache(3)


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

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