/*
* EnumFormatEtc([in] dwDirection, [out] ppenumFormatetc)
* Ownership of ppenumFormatetc transfers from callee to caller so reference count on ppenumFormatetc
* must be incremented before returning. Caller is responsible for releasing ppenumFormatetc.
*/
private int EnumFormatEtc(int dwDirection, long /*int*/ ppenumFormatetc) {
// only allow getting of data - SetData is not currently supported
if (dwDirection == COM.DATADIR_SET) return COM.E_NOTIMPL;
// what types have been registered?
TransferData[] allowedDataTypes = new TransferData[0];
for (int i = 0; i < transferAgents.length; i++) {
Transfer transferAgent = transferAgents[i];
if (transferAgent != null) {
TransferData[] formats = transferAgent.getSupportedTypes();
TransferData[] newAllowedDataTypes =
new TransferData[allowedDataTypes.length + formats.length];
System.arraycopy(allowedDataTypes, 0, newAllowedDataTypes, 0, allowedDataTypes.length);
System.arraycopy(formats, 0, newAllowedDataTypes, allowedDataTypes.length, formats.length);
allowedDataTypes = newAllowedDataTypes;
}
}
OleEnumFORMATETC enumFORMATETC = new OleEnumFORMATETC();
enumFORMATETC.AddRef();
FORMATETC[] formats = new FORMATETC[allowedDataTypes.length];
for (int i = 0; i < formats.length; i++) {
formats[i] = allowedDataTypes[i].formatetc;
}
enumFORMATETC.setFormats(formats);
OS.MoveMemory(ppenumFormatetc, new long /*int*/[] {enumFORMATETC.getAddress()}, OS.PTR_SIZEOF);
return COM.S_OK;
}
