[SOLVED] ListView - HitTest fails

namespace test_contextmenustrip
{
    class codejockHitTest
    {
        const int LVM_FIRST = 0x1000;
        const int LVM_HITTEST = (LVM_FIRST + 18);
        const int LVM_SUBITEMHITTEST = (LVM_FIRST + 57);
        const int LVHT_NOWHERE = 0x1;
        const int LVHT_ONITEMICON = 0x2;
        const int LVHT_ONITEMLABEL = 0x4;
        const int LVHT_ONITEMSTATEICON = 0x8;
        const int LVHT_ONITEM = (LVHT_ONITEMICON | LVHT_ONITEMLABEL | LVHT_ONITEMSTATEICON);

        public struct POINTAPI
        {
            public int x;
            public int y;
        }

        public struct LVHITTESTINFO
        {
            public POINTAPI pt;
            public int flags;
            public int iItem;
            public int iSubItem;
        }

        [DllImport("user32.dll")]
        public static extern int SendMessage(
                      int hWnd,      // handle to destination window
                      uint Msg,       // message
                      long wParam,  // first message parameter
                      LVHITTESTINFO lParam   // second message parameter
                      );

        public static XtremeSuiteControls.ListViewItem ExtremeListView_HitTest(AxXtremeSuiteControls.AxListView lv, int x, int y)
        {
            LVHITTESTINFO HTI = new LVHITTESTINFO();
            HTI.pt.x = x;
            HTI.pt.y = y;
            HTI.flags = LVHT_ONITEM;

            SendMessage(lv.hWnd, LVM_SUBITEMHITTEST, 0, HTI);

            if (HTI.iItem > -1)
            {
                return lv.ListItems[HTI.iItem + 1];
            }
            else
            {
                return null;
            }
        }
    }
}