GDDM V3R2 General Information
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Alphanumeric text

GDDM V3R2 General Information
GC33-0866-03
Alphanumeric text is character data presented in fields on the display screen. An application program can define specific attributes of the data, such as its color, and can specify that the data cannot be overwritten, for example. Other attributes, such as the typeface, size, and angle of the text cannot be specified. Alphanumeric text is intended for, and best suited to, asking the user for input and displaying responses to that input.
GDDM Base supports three sorts of alphanumeric text:
  • Procedural alphanumerics (using individually positioned data fields).
  • Mapped alphanumerics (using predefined screen layouts called "maps").
  • High-performance alphanumerics (using a data structure that describes all the fields on a page).

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