|
DROP OBJECT |
Delete Object |
DROP OBJECT obj_id[,ERR=stmtref]
Where:
|
obj_id |
Object identifier. |
|
stmtref |
Program line number or statement label to which to transfer control. |
The DROP OBJECT directive is used in Object Oriented Programming to delete an object. DROP OBJECT, DELETE OBJECT and REF( ) can all be used to delete an object.
Only objects whose reference count is 1 can be deleted. Once an object is destroyed, its identifier may be reassigned to another object, although this is not recommended. All objects are destroyed when the application issues a START directive or if the END directive is entered at the Command mode.
REF (READ obj_id) returns the current reference count value. All calls to REF ( ) return the current reference count (or 0 if deleted).
DEF CLASS Define Object Class
DELETE OBJECT Remove Windows Object
DROP CLASS Delete Class Definition
FUNCTION Declare Object Method
LIKE Inherit Properties
LOAD CLASS Pre-Load Class Definition
LOCAL Designation of Local Data
PROGRAM Create/Assign Program File
PROPERTY Declare Object Properties
RENAME CLASS Change Name of Class
STATIC Add Local Properties at Runtime
NEW( ) Create New Object
REF( ) Control Reference Count