Since the metrics may be substantially different for different scripts,
a language tag can be provided to indicate that the metrics should be
retrieved that correspond to the script(s) used by that language.
If @font is %NULL, this function gracefully sets some sane values in the
output variables and returns.
Gets overall metric information for a font.
Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language.
If @font is %NULL, this function gracefully sets some sane values in the output variables and returns.