Delphi控件源码

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Delphi

MdAggregate.pas：源码内容

							unit MdAggregate;
interface
type
  TMdAggregatedObject = class
  private
    FController: Pointer;
    function GetController: IInterface;
  protected
    { IInterface }
    function QueryInterface(const IID: TGUID; out Obj): HResult; stdcall;
    function _AddRef: Integer; stdcall;
    function _Release: Integer; stdcall;
  public
    constructor Create(Controller: IInterface);
    property Controller: IInterface read GetController;
  end;
implementation
function TMdAggregatedObject._AddRef: Integer;
begin
  Result := IInterface(FController)._AddRef;
end;
function TMdAggregatedObject._Release: Integer;
begin
  Result := IInterface(FController)._Release;
end;
constructor TMdAggregatedObject.Create(Controller: IInterface);
begin
  FController := Pointer(Controller);
end;
function TMdAggregatedObject.GetController: IInterface;
begin
  Result := IInterface(FController);
end;
function TMdAggregatedObject.QueryInterface(const IID: TGUID;
  out Obj): HResult;
begin
  Result := IUnknown(FController).QueryInterface(IID, Obj);
end;
end.
 

						