- ArrExpr. Returns the number of element in array expression ArrExpr
- FileVar. Returns the size of the file in bytes.
- BufferVar. Returns in bytes the size of the structure that defines (in the specific moment of code execution) Buffer variable BufferVar.
- BufferVar.field. Returns the size of the Buffer variable field.
- BUFDEFID. Returns the size, in bytes, of the structure defined by BUFDEFID. BUFDEFID is a value returned by the execution of a BUFDEF statement.