//
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
// Next
int OleInterop.IEnumFORMATETC.Next(uint celt, OleInterop.FORMATETC[] rgelt, uint[] pceltFetched)
{
if (null != oleEnum)
{
return(oleEnum.Next(celt, rgelt, pceltFetched));
}
BclComTypes.FORMATETC[] bclStat = new BclComTypes.FORMATETC[celt];
int[] fetched = new int[1];
int hr = bclEnum.Next((int)celt, bclStat, fetched);
if (NativeMethods.Failed(hr))
{
return(hr);
}
if (null != pceltFetched)
{
pceltFetched[0] = (uint)fetched[0];
}
for (int i = 0; i < fetched[0]; i++)
{
rgelt[i] = StructConverter.BclFormatETC2Ole(ref bclStat[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 BclComTypes.IDataObject.QueryGetData(ref BclComTypes.FORMATETC format)
{
if (null != bclData)
{
return(bclData.QueryGetData(ref format));
}
OleInterop.FORMATETC[] oleFormat = new OleInterop.FORMATETC[1];
oleFormat[0] = StructConverter.BclFormatETC2Ole(ref format);
return(oleData.QueryGetData(oleFormat));
}
void BclComTypes.IDataObject.GetData(ref BclComTypes.FORMATETC format, out BclComTypes.STGMEDIUM medium)
{
if (null != bclData)
{
bclData.GetData(ref format, out medium);
return;
}
OleInterop.FORMATETC[] oleFormat = new OleInterop.FORMATETC[1];
oleFormat[0] = StructConverter.BclFormatETC2Ole(ref format);
OleInterop.STGMEDIUM[] oleMedium = new OleInterop.STGMEDIUM[1];
oleData.GetData(oleFormat, oleMedium);
medium = StructConverter.OleSTGMEDIUM2Bcl(ref oleMedium[0]);
}
void BclComTypes.IDataObject.SetData(ref BclComTypes.FORMATETC formatIn, ref BclComTypes.STGMEDIUM medium, bool release)
{
if (null != bclData)
{
bclData.SetData(ref formatIn, ref medium, release);
return;
}
OleInterop.FORMATETC[] oleFormat = new OleInterop.FORMATETC[1];
oleFormat[0] = StructConverter.BclFormatETC2Ole(ref formatIn);
OleInterop.STGMEDIUM[] oleMedium = new OleInterop.STGMEDIUM[1];
oleMedium[0] = StructConverter.BclSTGMEDIUM2Ole(ref medium);
oleData.SetData(oleFormat, oleMedium, release ? 1 : 0);
}
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 IBclAdviseSink.OnDataChange(ref BclComTypes.FORMATETC format, ref BclComTypes.STGMEDIUM stgmedium)
{
if (null != bclSink)
{
bclSink.OnDataChange(ref format, ref stgmedium);
}
else
{
// As in the previous case we have to copy the parameters.
OleInterop.FORMATETC[] pFormatetc = new OleInterop.FORMATETC[1];
pFormatetc[0] = StructConverter.BclFormatETC2Ole(ref format);
OleInterop.STGMEDIUM[] pStgmed = new OleInterop.STGMEDIUM[1];
pStgmed[0] = StructConverter.BclSTGMEDIUM2Ole(ref stgmedium);
// Call the original interface.
oleSink.OnDataChange(pFormatetc, pStgmed);
}
}
int BclComTypes.IDataObject.DAdvise(ref BclComTypes.FORMATETC pFormatetc, BclComTypes.ADVF advf, BclComTypes.IAdviseSink adviseSink, out int connection)
{
if (null != bclData)
{
return(bclData.DAdvise(ref pFormatetc, advf, adviseSink, out connection));
}
OleInterop.FORMATETC[] oleFormat = new OleInterop.FORMATETC[1];
oleFormat[0] = StructConverter.BclFormatETC2Ole(ref pFormatetc);
uint result;
OleInterop.IAdviseSink oleSink = adviseSink as OleInterop.IAdviseSink;
if (null == oleSink)
{
oleSink = (OleInterop.IAdviseSink)(new AdviseSink(adviseSink));
}
int hr = oleData.DAdvise(oleFormat, (uint)advf, oleSink, out result);
NativeMethods.ThrowOnFailure(hr);
connection = (int)result;
return(hr);
}
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);
}