How to use Progressbar UI in parameters blocks in 3dsmax c++?

progressBar imageI am trying to pass a value to control the progressbar in the parameters block , but it is working,

    Tool_progB, _T("progressBar"), TYPE_INT, P_ANIMATABLE, IDS_PROGRESS,
        p_default, 100,
        p_range, 0, 100,
        p_end,
    p_end

    pblock2->SetValue(Tool_progB, t, 50);

is there any way to do it?

I tried to change the identifying the progressbar, but not work,