Method ProdInnerWithFormat

swish/shell_folder/DataObject.cpp:259–272

* Prod the inner DataObject with the given format. * * This sets an empty item in the inner DataObject which causes it to register * the existence of the format. This ensures that calls to QueryGetData() and * the IEnumFORMATETC enumeration---both of which are delegated to the inner * object---respond correctly. */

 * object---respond correctly.
 */
HRESULT CDataObject::ProdInnerWithFormat(CLIPFORMAT nFormat, DWORD tymed)
throw()
{
    CFormatEtc fetc(nFormat, tymed);

    STGMEDIUM stgEmpty = STGMEDIUM();

    // The tymeds in the FORMATETC and STGMEDIUM must match.  This was tripping
    // up Windows 8 (Consumer Preview) which is stricter about this and was
    // returning E_OUTOFMEMORY from SetData.
    stgEmpty.tymed = tymed;

    return m_inner->SetData(&fetc, &stgEmpty, true);
}