Technical data

• For 24x24 fonts, each character needs one cache unit. If cache size is set
to 4096, the cache can accommodate 4096 characters.
• For 34x34 fonts, each character needs three cache units. If cache size is
set to 4096, the cache can accommodate 1365 characters.
Small fonts (those whose characters require a single 128-byte unit) are used
to display ideographic characters. Therefore, you usually have to change
only the cache size to achieve acceptable performance in text displays of
languages with ideographic characters.
3.2 Setting Fonts for Display of Local Languages
The system on which you install language variant subsets is automatically
updated with the fonts required to display text in the supported languages.
In CDE, applications access local language fonts through a font alias mecha-
nism. The /usr/dt/config/xfonts/i18n/{75,100}dpi/fonts.alias
files rather than files installed in the /usr/dt/config/xfonts/lo-
cale-name/ areas are most critical for resolution of which fonts an
application uses. This arrangement supports both a consistent session
language and the ability to run an individual application in a language
different from the session language.
X or Motif applications require non-ASCII fonts to display Chinese
(and other, non-English) characters. Therefore, you must set the font
path appropriately before starting an application that displays Chinese
characters. An application can find Chinese fonts for codesets other than
GBK or GB18030 in either of the following directories:
• /usr/i18n/lib/X11/fonts/decwin/75dpi
• /usr/i18n/lib/X11/fonts/decwin/100dpi
Chinese fonts for GBK and GB18030 are installed in
/usr/i18n/lib/X11/fonts/SChineseTT (for TrueType
font).
For CDE applications, the appropriate fonts are installed on the system or
available through a font server. Thus, you do not need to enter manual
commands to ensure that the appropriate fonts are found. You can use the
xset command to check the font path or to add an appropriate font to the
path as described in xset
(1X).
3.2.1 Accessing Local Language Fonts for Remote Displays
The system where local language subsets are installed may function as a
client in a client/server display environment. In this case, the local language
3–4 Using Asian Language Support Enhancements for Motif Applications