1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _APNDATAOBJECT_HXX_ 25 #define _APNDATAOBJECT_HXX_ 26 27 #include <systools/win32/comtools.hxx> 28 29 //------------------------------------------------------------------------ 30 // declarations 31 //------------------------------------------------------------------------ 32 33 /* 34 an APartment Neutral dataobject wrapper; this wrapper of a IDataObject 35 pointer can be used from any apartment without RPC_E_WRONG_THREAD 36 which normally occurs if an apartment tries to use an interface 37 pointer of another apartment; we use containment to hold the original 38 DataObject 39 */ 40 class CAPNDataObject : public IDataObject 41 { 42 public: 43 CAPNDataObject( IDataObjectPtr rIDataObject ); 44 virtual ~CAPNDataObject( ); 45 46 //----------------------------------------------------------------- 47 // IUnknown interface methods 48 //----------------------------------------------------------------- 49 50 STDMETHODIMP QueryInterface(REFIID iid, LPVOID* ppvObject); 51 STDMETHODIMP_( ULONG ) AddRef( ); 52 STDMETHODIMP_( ULONG ) Release( ); 53 54 //----------------------------------------------------------------- 55 // IDataObject interface methods 56 //----------------------------------------------------------------- 57 58 STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 59 STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 60 STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc ); 61 STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut ); 62 STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease ); 63 STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ); 64 STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection ); 65 STDMETHODIMP DUnadvise( DWORD dwConnection ); 66 STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise ); 67 68 operator IDataObject*( ); 69 70 private: 71 HRESULT MarshalIDataObjectIntoCurrentApartment( IDataObject** ppIDataObj ); 72 73 private: 74 IDataObjectPtr m_rIDataObjectOrg; 75 HGLOBAL m_hGlobal; 76 LONG m_nRefCnt; 77 78 // prevent copy and assignment 79 private: 80 CAPNDataObject( const CAPNDataObject& theOther ); 81 CAPNDataObject& operator=( const CAPNDataObject& theOther ); 82 }; 83 84 #endif 85