Code-page conversion

GDDM V3R2 System Customization and Administration

Code-page conversion

GDDM V3R2 System Customization and Administration
SC33-0871-02

A code-page value can be specified for an installation, for an application, for a GDDM object, and for a device. When data moves from one of these entities to another (for example, when an application writes to a device), that data is guaranteed to display correctly only if the code page of the application and the device are the same. If they are not, code-page conversion is required to ensure correct display. By default, no code-page conversion occurs: you have to take special action to enable this. When it is enabled, however, code-page conversion applies to all character data. For example, if the application code page is USA CECP 00037 and the device code page is UK CECP 00285, and the application passes code point X'5B' for display, GDDM converts it to X'4A' before transmitting it to the device, so that the dollar sign displays as a dollar sign rather than as a pound sign.

Note: The three GDDM code pages (default EBCDIC 00351 and Katakana 00290 and 01027), are not CECPs, so do not support code-page conversion. Therefore, if either the source or the target code page is a GDDM code page, no conversion takes place.

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