// Erzeugen und initialisieren eines PropertyActionChoice-Objektes, welches die
// vorgegebenen PropertyActions enthält
HRESULT InitPropertyActionChoice (
LPCSTR pcDesc, CALPCLSID *pcaClsIds, IPropertyActionSequence **ppISeq)
{
USES_CONVERSION;
if (NULL == ppISeq) return E_POINTER;
*ppISeq = NULL; // für alle Fälle
WPropertyActionSequence ISeq;
HRESULT hr = E_FAIL;
WStorage IStg;
GetSubPropSeqStorage (IStg.ppi());
if (NULL != (IStorage *)IStg) { // evtl. gespeicherten Status laden
WStream IStm;
string strName = MakeStreamName(pcDesc);
// Stream erzeugen
hr = IStg -> OpenStream (A2OLE(strName.c_str()), NULL,
STGM_READ|STGM_SHARE_EXCLUSIVE, 0L, IStm.ppi());
if (SUCCEEDED(hr)) {
hr = OleLoadFromStream (IStm, IID_IPropertyActionSequence, ISeq.ppv());
if (SUCCEEDED(hr)) {
*ppISeq = ISeq.detach();
return S_OK;
}
}
}
// wenn Status nicht geladen werden kann, dann neu initialisieren
try {
// Objekt erzeugen
ISeq = WPropertyActionSequence (CLSID_PropertyChoice); // throws hr
ISeq -> SetDescription (pcDesc);
// Rücksetzen der AktionsFolge
WPersistStreamInit Init = ISeq; // throws hr
hr = Init -> InitNew();
if (FAILED(hr)) _com_issue_error(hr);
} catch (_com_error& hr) {
return _COM_ERROR(hr);
}
// hinzufügen der einzelnen Aktionen
hr = ISeq -> AddActionsByCLSID (pcaClsIds);
if (FAILED(hr)) return hr;
*ppISeq = ISeq.detach();
return NOERROR;
}
// ----------------------------------------------------------------------------
// PropertySequence_refcnt
// ----------------------------------------------------------------------------
void PropertySequence_refcnt (ebHTHREAD hThread, int iNumArgs, ebARGS lpArgs)
{
BASIC_OP_TRACE_SYS(PropertySequence_refcnt);
switch (iNumArgs) {
case OBJECT_REFNEW:
{
ebSetObject (lpArgs, 0, NULL); // für alle Fälle
try {
WPropertyActionSequence PropSeq (CLSID_PropertyActionSequence); // throws hr
HPROJECT hPrCtx = reinterpret_cast<HPROJECT>(ebThread_GetLong (hThread, SETLONG_HPROJECT)); // Kontext-Datenquelle
ebSetObject (lpArgs, 0, (DWORD)PropSeq.detach());
if (HACTCONNECTION != hPrCtx) {
WDataObject CtxDO;
CComVariant vData (reinterpret_cast<long>(hPrCtx), VT_I4);
THROW_FAILED_HRESULT(PropSeq -> GetSequenceContext (CtxDO.ppi()));
THROW_FAILED_HRESULT(SetVariantData (vData, CtxDO, &c_feDataSourceHandle));
}
} catch (...) {
TRACE("Couldn't instantiate PropertyActionSequence\r\n");
}
}
break;
case OBJECT_REFINC:
((IUnknown *)ebGetObject(lpArgs, 1)) -> AddRef();
break;
case OBJECT_REFDEC:
((IUnknown *)ebGetObject(lpArgs, 1)) -> Release();
break;
}
}
// Laden einer bestimmten PropertySequence
HRESULT LoadPropertySequence (BSTR bstrName, IPropertyActionSequence **ppIPropertyActionSequence)
{
TEST_OUT_PARAM(ppIPropertyActionSequence);
COM_TRY {
WStorage Stg;
if (FAILED(OpenPropSeqStorage (STGM_READ, Stg.ppi())))
return E_FAIL;
CComBSTR bstrStreamName;
WStream Strm;
THROW_FAILED_HRESULT(MakeStreamName(bstrName, bstrStreamName));
if (FAILED(Stg -> OpenStream (bstrStreamName, NULL, STGM_READ | STGM_SHARE_EXCLUSIVE, 0, Strm.ppi())))
return E_FAIL;
WPropertyActionSequence Seq;
THROW_FAILED_HRESULT(::OleLoadFromStream (Strm, Seq.GetIID(), Seq.ppv()));
*ppIPropertyActionSequence = Seq.detach();
} COM_CATCH;
return S_OK;
}