Манипулирование кнопками OpenDialog

Code:

uses

CommCtrl;

// Example: Hide the "Create New Folder" Button.

procedure TForm1.OpenPictureDialog1Show(Sender: TObject);

const

TB_BTN_NEWFOLDER  = 40962;

var

  hWndToolbar, wnd: HWND;

  tbInfo: TTBButtonInfoA;

begin

   tbInfo.cbSize := SizeOf(TTBButtonInfo);

   tbInfo.dwMask := TBIF_STATE;

   tbinfo.fsState := TBSTATE_HIDDEN or TBSTATE_INDETERMINATE;

   hWndToolbar := FindWindowEx(GetParent((Sender as TOpenPictureDialog).Handle), 0,

     'ToolbarWindow32', nil);

   SendMessage(hWndToolbar, TB_SETBUTTONINFO, TB_BTN_NEWFOLDER  ,LParam(@tbinfo));

end;