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Frees an object reference and replaces the reference with nil (Delphi) or NULL (C++).

Unit
SysUtils

Syntax


[C++] void FreeAndNil (void * Obj);


Description
Use FreeAndNil to ensure that a variable is nil (Delphi) or NULL (C++) after you free the object it references. Pass any variable that represents an object as the Obj parameter.
Warning:
Obj must be an instance of a TObject descendant.