OleContainerのフォーカス (ID:25648)

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type
  TOleContainerEx = class(TOleContainer)
  private
    function  ShowToolBar: HRESULT;
    procedure CMUIDeactivate(var Message: TMessage); message CM_UIDeactivate;
    constructor CreateClone(Origin: TControl);
  end;

constructor TOleContainerEx.CreateClone(Origin: TControl);
var
  BinStream: TStream;
begin
  Create(Origin.Owner);
  BinStream := TMemoryStream.Create;
  try
    with TWriter.Create(BinStream, $800) do try
      Root := Origin.Owner;
      WriteSignature;
      WriteComponent(Origin);
      WriteListEnd;
    finally
      Free;
    end;
    with TReader.Create(BinStream, $800) do try
      Root := Origin.Owner;
      Parent := TControl(Origin).Parent;
      Origin.Free;
      Position := 0;
      BeginReferences;
      try
        ReadSignature;
        ReadComponent(Self);
        FixupReferences;
        AutoActivate := aaGetFocus;     // クリックでActive
      finally
        EndReferences;
      end;
    finally
      Free;
    end;
  finally
    BinStream.Free;
  end;
end;

procedure TOleContainerEx.CMUIDeactivate(var Message: TMessage);
begin
  exit;  // ナンもせーへん
end;

function TOleContainerEx.ShowToolBar: HRESULT;
var
  View: IOleDocumentView;
  Doc: IOleDocument;
begin
  result := ERROR;
  if Self.OleObjectInterface.QueryInterface(IOleDocument, Doc) <> 0 then Exit;
  if Doc = nil then Exit;
  if Doc.CreateView(Self, nil, 0, View) <> 0 then Exit;
  View.UIActivate(TRUE);
  result := NOERROR;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  TOleContainerEx.CreateClone(OleContainer1);
  OleContainer1.CreateObjectFromFile(ExtractFilePath(Application.EXEName) + 'ほにゃ.xls', False);
  OleContainer1.Visible := True;
  OleContainer1.DoVerb(ovShow);
  OleContainer1.SetFocus;
  TOleContainerEx(OleContainer1).ShowToolBar;    // ExcelToolbar隠れとったら表示
end;

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