HP Integrity NonStop J-Series - Manual (Page 237)

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©Copyright 1996 Rogue Wave Software
Localizing Messages
To accommodate a user's language, a program must display titles, menu choices, and status
messages in that language. Usually such text is stored in a message catalog or resource file,
separate from program code, so it may be easily edited or replaced. Tools.h++ does not display
titles or menus directly, but does return status messages when errors occur. By default,
Tools.h++ makes no attempt to localize these messages. Instead, it provides an optional facility
that allows error messages to be retrieved from your own catalog.
The facility can be used in one of four modes:
Mode Define
No messaging RW_NOMSG
Use catgets() RW_CATGETS
Use gettext() RW_GETTEXT
Use dgettext() RW_DGETTEXT
These localization techniques and their documentation are specific to your platform. Once you
discover what your system provides, you specify that mode for Tools.h++ by setting the
appropriate switch in before compiling the library. If you have object code,
this choice has already been made for you.
Function catgets() uses both a message set number and a message number within that set to look
up a localized version of a message. The number for the message set to use is defined in the
macro RW_MESSAGE_SET_NUMBER found in . Function gettext() uses the
message itself. The messages and their respective message numbers are given in Appendix C.
You will find information on using catgets(), gettext(), and dgettext()in the documentation that
comes with your compiler.