BExplorer.Shell.DataObject.QueryGetData C# (CSharp) Method

        public int QueryGetData(ref FORMATETC format)
        {
            // We only support CONTENT aspect
            if ((DVASPECT.DVASPECT_CONTENT & format.dwAspect) == 0)
                return DV_E_DVASPECT;

            int ret = DV_E_TYMED;

            // Try to locate the data
            // TO_DO: The ret, if not S_OK, is only relevant to the last item
            foreach (KeyValuePair<FORMATETC, STGMEDIUM> pair in storage)
            {
                if ((pair.Key.tymed & format.tymed) > 0)
                {
                    if (pair.Key.cfFormat == format.cfFormat)
                    {
                        // Found it, return S_OK;
                        return 0;
                    }
                    else
                    {
                        // Found the medium type, but wrong format
                        ret = DV_E_CLIPFORMAT;
                    }
                }
                else
                {
                    // Mismatch on medium type
                    ret = DV_E_TYMED;
                }
            }

            return ret;
        }