IEGlobalSettings().KeyboardShortcuts[iesCopy] := 0;

procedure TformPreview.ImageEnViewPreviewKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
begin
  if (Shift = [ssCtrl]) then 
  begin
    case Key of
      VK_C:
        begin
          CodeSite.Send('TformPreview.ImageEnViewPreviewKeyDown: ');
        end;
    end;
  end;
end;

procedure TMainForm.ImageEnView1KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
begin
  if ( Shift = [ssCtrl]) and (Key = VK_C ) then
    Key := 0;
end;