•  Preface
  • Purpose
  •  Using ABL documentation
    •  References to ABL compiler and run-time features
      • References to ABL data types
    • References to ABL data types
  • Typographical conventions
  •  Examples of syntax descriptions
    • Long syntax descriptions split across lines
    • Complex syntax descriptions with both required and optional elements
  • Example procedures
  •  OpenEdge messages
    • Obtaining more information about OpenEdge messages
•  ABL elements related to the call object
  • Attributes of a call object handle
  • Methods of a call object handle
• When to use the call object
•  Code examples
  • Running an internal procedure of a persistent external procedure
  • Running an internal procedure of a single-run or singleton procedure
  • Using a call object multiple times
  • Getting an attribute
  • Setting an attribute
  • Multiple dynamic invokes from a temp-table
  • Invoking a Windows DLL routine
  • Implementing a sleep timer