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);
}
static bool TryGetResourceValue(System.Runtime.InteropServices.ComTypes.IDataObject dataObject, string resourceName, out string value)
{
value = string.Empty;
FORMATETC formatEtc = new FORMATETC();
formatEtc.cfFormat = (short)System.Windows.Forms.DataFormats.GetFormat(resourceName).Id;
formatEtc.ptd = IntPtr.Zero;
formatEtc.dwAspect = DVASPECT.DVASPECT_CONTENT;
formatEtc.lindex = -1;
formatEtc.tymed = TYMED.TYMED_HGLOBAL;
STGMEDIUM stg = new STGMEDIUM();
stg.pUnkForRelease = null;
stg.tymed = TYMED.TYMED_HGLOBAL;
#pragma warning suppress 56523
stg.unionmember = SafeNativeMethods.GlobalAlloc(SafeNativeMethods.GMEM_SHARE, 255);
if (stg.unionmember == IntPtr.Zero)
{
return(false);
}
try
{
dataObject.GetDataHere(ref formatEtc, ref stg);
}
catch (Exception ex)
{
if (Utilities.IsCriticalException(ex))
{
throw;
}
return(false);
}
value = Marshal.PtrToStringUni(stg.unionmember);
SafeNativeMethods.ReleaseStgMedium(ref stg);
return(true);
}