[Fontconfig] how to detect on change of FcConfig?
Wed, 30 Apr 2003 20:50:22 -0700
Around 12 o'clock on May 1, Kang Jeong-Hee wrote:
> as a consequence of routine above, Pango or any other higher level
> must rescan the FcConfig to recognize the change of fonts.
Fontconfig exposes the list of files and directories which need to be
monitored for changes that might affect the configuration:
FcConfigGetFontDirs (FcConfig *config);
FcConfigGetConfigDirs (FcConfig *config);
FcConfigGetConfigFiles (FcConfig *config);
Monitor every file in those lists and you'll know when the configuration
might need to be reloaded. You can poll by using:
FcConfigUptoDate (FcConfig *config);
which returns TRUE if the configuration is not out of date with the disk
files. When it returns FALSE, you can call:
to reinitialize the library.
Fontconfig automatically does this process whenever FcFontList is called
(but no more often than the rescan interval, which defaults to 30 seconds).