GDDM V3R2 Base Application Programming Reference
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Base attribute adjunct

GDDM V3R2 Base Application Programming Reference
SC33-0868-02
Base attributes are the basic (as opposed to extended) field attributes that are supported by all display devices supported by GDDM. They can be specified for individual fields on a map during map definition and reset during program execution by base-attribute adjuncts. They include:
  • Protected/unprotected/autoskip
  • Intensified-display/normal-display/nondisplay
  • Detectable/nondetectable
  • MDT bit set/reset
  • Alphanumeric/numeric.
The attribute adjunct value byte can contain any valid IBM 3270 basic attribute code. GDDM sets the reserved and meaningless bits of the attribute correctly, so all one-byte values are accepted.
The base attribute adjunct value byte completely specifies the combination of base attributes to be used for the field on the device. It is not merged in any way with previous base-attribute specifications for the field, or with the value specified in the associated map.

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