The following syntax describes how to specify a COMparm for a COM object method:
{ [ OUTPUT | INPUT-OUTPUT ] expression [ AS Data-type ] [ BY-POINTER | BY-VARIANT-POINTER ] | null-parm } |
The expression can be any valid ABL expression or data element. Data-type is a supported COM data type that is compatible with the expression. A null-parm is any amount of white space. For information on COM data types and on OUTPUT, INPUT-OUTPUT, BY-POINTER, and BY-VARIANT-POINTER, see Data-type.