//
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
// 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);
}
}
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);
}
void BclComTypes.IDataObject.GetDataHere(ref BclComTypes.FORMATETC format, ref BclComTypes.STGMEDIUM medium)
{
if (null != bclData)
{
bclData.GetDataHere(ref format, ref medium);
return;
}
OleInterop.FORMATETC[] oleFormat = new OleInterop.FORMATETC[1];
oleFormat[0] = StructConverter.BclFormatETC2Ole(ref format);
OleInterop.STGMEDIUM[] oleMedium = new OleInterop.STGMEDIUM[1];
oleMedium[0] = StructConverter.BclSTGMEDIUM2Ole(ref medium);
oleData.GetDataHere(oleFormat, oleMedium);
medium = StructConverter.OleSTGMEDIUM2Bcl(ref oleMedium[0]);
}
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);
}
}
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);
}