int OleInterop.IDataObject.DAdvise(OleInterop.FORMATETC[] pFormatetc, uint ADVF, OleInterop.IAdviseSink pAdvSink, out uint pdwConnection)
{
if (null != oleData)
{
return(oleData.DAdvise(pFormatetc, ADVF, pAdvSink, out pdwConnection));
}
// We have to call the method in the BCL version of the interface, so we need to
// convert the parameters to the other type of structure.
// As first make sure that the array contains exactly one element.
if ((null == pFormatetc) || (pFormatetc.Length != 1))
{
throw new ArgumentException();
}
// Now convert the patameters
BclComTypes.FORMATETC bclFormat = StructConverter.OleFormatETC2Bcl(ref pFormatetc[0]);
BclComTypes.IAdviseSink bclSink = pAdvSink as BclComTypes.IAdviseSink;
if (null == bclSink)
{
bclSink = new AdviseSink(pAdvSink);
}
int connection;
int hr = bclData.DAdvise(ref bclFormat, (BclComTypes.ADVF)(ADVF), bclSink, out connection);
pdwConnection = (uint)connection;
return(hr);
}
int BclComTypes.IEnumFORMATETC.Next(int celt, BclComTypes.FORMATETC[] rgelt, int[] pceltFetched)
{
if (null != bclEnum)
{
return(bclEnum.Next(celt, rgelt, pceltFetched));
}
OleInterop.FORMATETC[] oleStat = new OleInterop.FORMATETC[celt];
uint[] fetched = new uint[1];
int hr = oleEnum.Next((uint)celt, oleStat, fetched);
if (NativeMethods.Failed(hr))
{
return(hr);
}
if (null != pceltFetched)
{
pceltFetched[0] = (int)fetched[0];
}
for (uint i = 0; i < fetched[0]; i++)
{
rgelt[i] = StructConverter.OleFormatETC2Bcl(ref oleStat[i]);
}
return(hr);
}
//
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
// OnDataChange
//
void IOleAdviseSink.OnDataChange(OleInterop.FORMATETC[] pFormatetc, OleInterop.STGMEDIUM[] pStgmed)
{
if (null != oleSink)
{
oleSink.OnDataChange(pFormatetc, pStgmed);
}
else
{
// In order to call the version of this interface defined in the BCL
// each array must contain exactly one object.
if ((null == pFormatetc) || (null == pStgmed))
{
throw new ArgumentNullException("");
}
if ((1 != pFormatetc.Length) || (1 != pStgmed.Length))
{
throw new InvalidOperationException();
}
// Convert the parameters
BclComTypes.FORMATETC bclFormat = StructConverter.OleFormatETC2Bcl(ref pFormatetc[0]);
BclComTypes.STGMEDIUM bclMedium = StructConverter.OleSTGMEDIUM2Bcl(ref pStgmed[0]);
// Now we can call the method on the BCL interface
bclSink.OnDataChange(ref bclFormat, ref bclMedium);
// Now we have to copy the parameters back into the original structures.
pFormatetc[0] = StructConverter.BclFormatETC2Ole(ref bclFormat);
pStgmed[0] = StructConverter.BclSTGMEDIUM2Ole(ref bclMedium);
}
}
int OleInterop.IDataObject.QueryGetData(OleInterop.FORMATETC[] pFormatetc)
{
if (null != oleData)
{
return(oleData.QueryGetData(pFormatetc));
}
if ((null == pFormatetc) || (1 != pFormatetc.Length))
{
throw new ArgumentException();
}
BclComTypes.FORMATETC bclFormat = StructConverter.OleFormatETC2Bcl(ref pFormatetc[0]);
return(bclData.QueryGetData(ref bclFormat));
}
int BclComTypes.IDataObject.GetCanonicalFormatEtc(ref BclComTypes.FORMATETC formatIn, out BclComTypes.FORMATETC formatOut)
{
if (null != bclData)
{
return(bclData.GetCanonicalFormatEtc(ref formatIn, out formatOut));
}
OleInterop.FORMATETC[] oleFormatIn = new OleInterop.FORMATETC[1];
OleInterop.FORMATETC[] oleFormatOut = new OleInterop.FORMATETC[1];
oleFormatIn[0] = StructConverter.BclFormatETC2Ole(ref formatIn);
int hr = oleData.GetCanonicalFormatEtc(oleFormatIn, oleFormatOut);
NativeMethods.ThrowOnFailure(hr);
formatOut = StructConverter.OleFormatETC2Bcl(ref oleFormatOut[0]);
return(hr);
}
void OleInterop.IDataObject.SetData(OleInterop.FORMATETC[] pFormatetc, OleInterop.STGMEDIUM[] pmedium, int fRelease)
{
if (null != oleData)
{
oleData.SetData(pFormatetc, pmedium, fRelease);
return;
}
if ((null == pFormatetc) || (1 != pFormatetc.Length) ||
(null == pmedium) || (1 != pmedium.Length))
{
throw new ArgumentException();
}
BclComTypes.FORMATETC bclFormat = StructConverter.OleFormatETC2Bcl(ref pFormatetc[0]);
BclComTypes.STGMEDIUM bclMedium = StructConverter.OleSTGMEDIUM2Bcl(ref pmedium[0]);
bclData.SetData(ref bclFormat, ref bclMedium, (fRelease == 0) ? false : true);
}
void OleInterop.IDataObject.GetDataHere(OleInterop.FORMATETC[] pFormatetc, OleInterop.STGMEDIUM[] pRemoteMedium)
{
if (null != oleData)
{
oleData.GetDataHere(pFormatetc, pRemoteMedium);
return;
}
// Check that the arrays are not null and with only one element.
if ((null == pFormatetc) || (pFormatetc.Length != 1) ||
(null == pRemoteMedium) || (pRemoteMedium.Length != 1))
{
throw new ArgumentException();
}
// Call the method on the BCL interface
BclComTypes.FORMATETC bclFormat = StructConverter.OleFormatETC2Bcl(ref pFormatetc[0]);
BclComTypes.STGMEDIUM bclMedium = StructConverter.OleSTGMEDIUM2Bcl(ref pRemoteMedium[0]);
bclData.GetDataHere(ref bclFormat, ref bclMedium);
pRemoteMedium[0] = StructConverter.BclSTGMEDIUM2Ole(ref bclMedium);
}
int OleInterop.IDataObject.GetCanonicalFormatEtc(OleInterop.FORMATETC[] pformatectIn, OleInterop.FORMATETC[] pformatetcOut)
{
if (null != oleData)
{
return(oleData.GetCanonicalFormatEtc(pformatectIn, pformatetcOut));
}
// Check that the arrays are not null and with only one element.
if ((null == pformatectIn) || (pformatectIn.Length != 1) ||
(null == pformatetcOut) || (pformatetcOut.Length != 1))
{
throw new ArgumentException();
}
BclComTypes.FORMATETC bclFormatIn = StructConverter.OleFormatETC2Bcl(ref pformatectIn[0]);
BclComTypes.FORMATETC bclFormatOut;
int hr = bclData.GetCanonicalFormatEtc(ref bclFormatIn, out bclFormatOut);
NativeMethods.ThrowOnFailure(hr);
pformatetcOut[0] = StructConverter.BclFormatETC2Ole(ref bclFormatOut);
return(hr);
}