C++ (Cpp) SystemData::size Examples

Example #1

File: dataobj.cpp Project: hazeeq090576/wxWidgets

STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir,
                                          IEnumFORMATETC **ppenumFormatEtc)
{
    wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::EnumFormatEtc"));

    wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get
                                                       : wxDataObject::Set;

    // format count is total of user specified and system formats.
    const size_t ourFormatCount = m_pDataObject->GetFormatCount(dir);
    const size_t sysFormatCount = m_systemData.size();

    const ULONG
        nFormatCount = wx_truncate_cast(ULONG, ourFormatCount + sysFormatCount);

    // fill format array with formats ...
    wxScopedArray<wxDataFormat> formats(nFormatCount);

    // ... from content data (supported formats)
    m_pDataObject->GetAllFormats(formats.get(), dir);

    // ... from system data
    for ( size_t j = 0; j < sysFormatCount; j++ )
    {
        SystemDataEntry* entry = m_systemData[j];
        wxDataFormat& format = formats[ourFormatCount + j];
        format = entry->pformatetc->cfFormat;
    }

    wxIEnumFORMATETC *pEnum = new wxIEnumFORMATETC(formats.get(), nFormatCount);
    pEnum->AddRef();
    *ppenumFormatEtc = pEnum;

    return S_OK;
}