void CCircCtrl::SetNote(LPCTSTR lpszNewValue)
{
if (m_note != lpszNewValue)
{
m_note = lpszNewValue;
SetModifiedFlag();
InvalidateControl();
BoundPropertyChanged(dispidNote);
}
}
BOOL COleControl::SetPropsetData(LPFORMATETC lpFormatEtc,
LPSTGMEDIUM lpStgMedium, REFCLSID fmtid)
{
UNUSED(lpFormatEtc); // unused in release builds
ASSERT_VALID(this);
ASSERT(AfxIsValidAddress(lpFormatEtc, sizeof(FORMATETC), FALSE));
ASSERT(AfxIsValidAddress(lpStgMedium, sizeof(STGMEDIUM)));
// Get the stream that contains the property set.
LPSTORAGE lpStorage = NULL;
LPSTREAM lpStream = NULL;
switch (lpStgMedium->tymed)
{
case TYMED_ISTORAGE:
{
lpStorage = lpStgMedium->pstg;
ASSERT_POINTER(lpStorage, IStorage);
if (FAILED(lpStorage->OpenStream(OLESTR("Contents"), 0,
STGM_SHARE_EXCLUSIVE|STGM_READ, 0, &lpStream)))
{
TRACE0("Failed to open content stream.\n");
return FALSE;
}
}
break;
case TYMED_ISTREAM:
lpStorage = NULL;
lpStream = lpStgMedium->pstm;
break;
default:
TRACE0("Propset only supported for stream or storage.\n");
return FALSE;
}
ASSERT_POINTER(lpStream, IStream);
// Read the property set from the stream.
CPropertySet pset;
if (!pset.ReadFromStream(lpStream))
{
TRACE0("CPropertySet::ReadFromStream failed.\n");
return FALSE;
}
CPropertySection* ppsec = pset.GetSection(fmtid);
if (ppsec == NULL)
{
TRACE0("CLSID_PersistPropset section not found in property set.\n");
return FALSE;
}
// Detect whether we're converting a VBX
m_bConvertVBX = (BYTE)IsEqualGUID(fmtid, CLSID_ConvertVBX);
// Parse the property set.
CPropsetPropExchange propx(*ppsec, lpStorage, TRUE);
BOOL bPropExchange = FALSE;
TRY
{
DoPropExchange(&propx);
bPropExchange = TRUE;
}
END_TRY
// Properties have probably changed
BoundPropertyChanged(DISPID_UNKNOWN);
InvalidateControl();
m_bConvertVBX = FALSE;
// Clear the modified flag.
m_bModified = FALSE;
// Unless IOleObject::SetClientSite is called after this, we can
// count on ambient properties being available while loading.
m_bCountOnAmbients = TRUE;
// Properties have been initialized
m_bInitialized = TRUE;
// Cleanup.
if (lpStorage != NULL) // If we called OpenStream(), release now.
lpStream->Release();
BoundPropertyChanged(DISPID_UNKNOWN);
return bPropExchange;
}