isCOBOL Evolve : User Interface : Controls Reference : ENTRY-FIELD : Properties : Trunc-Value
Trunc-Value
When inquired, this property tells if the value of the Entry-Field is fully visible or if it was truncated by the Entry-Field width. The property value will be 0 if the content is fully visible or 1 if the content was truncated.
 
Example - Check if the entry-field value is fully visible
working-storage section.
...
77 tc pic 9.
...
procedure division.
...
  inquire screen-1-ef-1 trunc-value tc.
  if tc = 1
    display "entry field value not fully visible" upon sysout.