Arguments

featureId  (integer)  'handle' identifier of the 'GIS Feature' to query for the specified Attribute
attName  (string)  name of the 'GIS Feature Attribute" to query (case-insensitive)

Return

T or NIL

Example

(vl-load-gis)  T
(setq layers (gis:get-layers))  ("shp_3857_point_2d_utf8")
(setq name (car layers))  "shp_3857_point_2d_utf8"
(setq layerId (gis:get-layer name))  1736983018068
(setq features (gis:layer-get-features layerId))  (1685094904232 1685094904233)
(setq featureId (car features))  1685094904232
(gis:feature-has-attribute featureId "ID")  T

Remarks

a 'GIS Feature Attribute' represents a "Column" in the GIS Database table; each 'GIS Feature' (built-up from dwg entities) is a row in such table;
the 'GIS Feature Attribute' name string is always handled as case-insensitive !