public IEnumerable <DataObjectFormat> GetFormats()
{
IEnumFORMATETC enumFormatEtc = null !;
try
{
enumFormatEtc = DataObject.EnumFormatEtc(DATADIR.DATADIR_GET);
if (enumFormatEtc == null)
{
return(Array.Empty <DataObjectFormat>());
}
enumFormatEtc.Reset();
var fe = new FORMATETC[1];
var fs = new List <DataObjectFormat>();
while (enumFormatEtc.Next(1, fe, null) == 0)
{
fs.Add(new DataObjectFormat(fe[0]));
}
return(fs);
}
finally
{
if (enumFormatEtc != null)
{
Marshal.ReleaseComObject(enumFormatEtc);
}
}
}
public virtual string[] GetFormats(bool autoConvert)
{
Debug.Assert(innerData != null, "You must have an innerData on all DataObjects");
IEnumFORMATETC enumFORMATETC = null;
ArrayList formats = new ArrayList();
try
{
enumFORMATETC = innerData.EnumFormatEtc(DATADIR.DATADIR_GET);
}
catch
{
}
if (enumFORMATETC != null)
{
enumFORMATETC.Reset();
FORMATETC[] formatetc = new FORMATETC[] { new FORMATETC() };
int[] retrieved = new int[] { 1 };
while (retrieved[0] > 0)
{
retrieved[0] = 0;
try
{
enumFORMATETC.Next(1, formatetc, retrieved);
}
catch
{
}
if (retrieved[0] > 0)
{
string name = DataFormats.GetFormat(formatetc[0].cfFormat).Name;
if (autoConvert)
{
string[] mappedFormats = GetMappedFormats(name);
for (int i = 0; i < mappedFormats.Length; i++)
{
formats.Add(mappedFormats[i]);
}
}
else
{
formats.Add(name);
}
}
}
}
string[] temp = new string[formats.Count];
formats.CopyTo(temp, 0);
return(GetDistinctStrings(temp));
}
public virtual string[] GetFormats(bool autoConvert)
{
Debug.Assert(innerData != null, "You must have an innerData on all DataObjects");
IEnumFORMATETC enumFORMATETC = null;
// Since we are only adding elements to the HashSet, the order will be preserved.
HashSet <string> distinctFormats = new HashSet <string>();
try
{
enumFORMATETC = innerData.EnumFormatEtc(DATADIR.DATADIR_GET);
}
catch
{
}
if (enumFORMATETC != null)
{
enumFORMATETC.Reset();
FORMATETC[] formatetc = new FORMATETC[] { new FORMATETC() };
int[] retrieved = new int[] { 1 };
while (retrieved[0] > 0)
{
retrieved[0] = 0;
try
{
enumFORMATETC.Next(1, formatetc, retrieved);
}
catch
{
}
if (retrieved[0] > 0)
{
string name = DataFormats.GetFormat(formatetc[0].cfFormat).Name;
if (autoConvert)
{
string[] mappedFormats = GetMappedFormats(name);
for (int i = 0; i < mappedFormats.Length; i++)
{
distinctFormats.Add(mappedFormats[i]);
}
}
else
{
distinctFormats.Add(name);
}
}
}
}
return(distinctFormats.ToArray());
}
private static int Reset(IntPtr thisPtr)
{
try
{
IEnumFORMATETC instance = ComInterfaceDispatch.GetInstance <IEnumFORMATETC>((ComInterfaceDispatch *)thisPtr);
instance.Reset();
return(S_OK);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(ex.HResult);
}
}