┌──────────────────────────────────────────────────────────────────────┐ │Use characters common to both extended PC code pages and conventional │ │PC code pages to build MRI. │ └──────────────────────────────────────────────────────────────────────┘
A DBCS user may run an application program either on a conventional PC code page or on an extended PC code page. For example, a Japanese user may run an application program on code page 932 (conventional one) or on 942 (extended one). Your application program should not include characters which are only defined on extended code pages 942. If they are used to build messages and dialog panels, they are invisible to a user on a conventional code page. In case of Japanese, those are "\", "¬", "~", "¢", and "£".