public int DAdvise(ref FORMATETC pFormatetc, ADVF advf, IAdviseSink adviseSink, out int connection)
{
if (null == DataAdviseHolder)
{
ComDebug.ReportInfo("{0}.IDataObject.DAdvise -> not implemented!", GetType().Name);
connection = 0;
return(ComReturnValue.E_NOTIMPL);
}
else
{
ComDebug.ReportInfo("{0}.IDataObject.DAdvise {1}, {2}", GetType().Name, DataObjectHelper.FormatEtcToString(pFormatetc), advf);
try
{
if (pFormatetc.cfFormat != 0) // if a special format is required
{
int res = QueryGetData(ref pFormatetc); // ask the render helper for availability of that format
if (res != ComReturnValue.S_OK) // if the required format is not available
{
connection = 0; // return an invalid connection cookie
return(res); // and the error
}
}
FORMATETC etc = pFormatetc;
DataAdviseHolder.Advise((IDataObject)this, ref etc, advf, adviseSink, out var conn);
connection = conn;
return(ComReturnValue.NOERROR);
}
catch (Exception e)
{
ComDebug.ReportError("{0}.IDataObject.DAdvise exception: {1}", GetType().Name, e);
throw;
}
}
}
public virtual void SendAdvise_DataChanged()
{
if (null != DataAdviseHolder)
{
ComDebug.ReportInfo("{0}.SendAdvise.DataChanged -> Calling _dataAdviseHolder.SendOnDataChange()", GetType().Name);
DataAdviseHolder.SendOnDataChange((IDataObject)this, 0, 0);
}
}
public int EnumDAdvise(out IEnumSTATDATA enumAdvise)
{
if (null == DataAdviseHolder)
{
ComDebug.ReportInfo("{0}.IDataObject.EnumAdvise -> not implemented!", GetType().Name);
enumAdvise = null;
return(ComReturnValue.E_NOTIMPL);
}
else
{
ComDebug.ReportInfo("{0}.IDataObject.EnumAdvise", GetType().Name);
enumAdvise = DataAdviseHolder.EnumAdvise();
return(ComReturnValue.S_OK);
}
}
public void DUnadvise(int connection)
{
if (null == DataAdviseHolder)
{
ComDebug.ReportInfo("{0}.IDataObject.DUnadvise connection={1} -> not implemented!", GetType().Name, connection);
return;
}
else
{
ComDebug.ReportInfo("{0}.IDataObject.DUnadvise connection={1}", GetType().Name, connection);
try
{
DataAdviseHolder.Unadvise(connection);
}
catch (Exception e)
{
ComDebug.ReportError("{0}.IDataObject.DUnadvise exception {1}", GetType().Name, e);
throw;
}
}
}
