GDDM V3R2 Base Application Programming Reference
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The data buffer

GDDM V3R2 Base Application Programming Reference
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The data buffer consists of data areas containing the data and character attributes for each field defined in the field list. The position and size of each data area within the data buffer is defined in the field list. Each field-list entry contains the length and index into the data buffer of its character-data area. Optionally, it may also contain indexes to a character color data area, a character highlight data area, and a character symbol set data area.

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