Returns a toolbar window handle.
See IExchExtCallback : IUnknown.
HRESULT GetToolbar(
ULONG tbid,
HWND FAR * lphwndTb
);
Currently, only the standard toolbar defined by EETB_STANDARD is supported. It is therefore not possible to add toolbar buttons to other toolbars such as the formatting toolbar.
IExchExtCommands::ResetToolbar