X++ Code for Item on hand quantity in AX 2012 Retail

static void OnHandQtyRetailsSiva(Args _args)
{
    RetailStoreId       store = 'ANNARBO';
    ItemId                itemid = '0001';
    InventQty           postedQty;

    InventDimParm          inventDimParmCrit;
    InventSumDateDim    inventSumDateDim;
    InventDim                 inventDim;
    InventDim                 inventDimloc;

    inventDim.InventLocationId  = store;
    inventDim.InventSiteId        = 'CENTRAL';

    inventDimloc = InventDim::findOrCreate(inventDim);
    inventDimParmCrit.initFromInventDim(inventDimloc);

    inventSumDateDim = inventSumDateDim::newParameters(systemDateGet(), itemId, inventDimloc, inventDimParmCrit);

    postedQty = InventSumDateDim.postedQty();
    info(strFmt('%1', postedQty));
}