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 25 #ifndef _APNDATAOBJECT_HXX_ 26 #define _APNDATAOBJECT_HXX_ 27 28 #include <systools/win32/comtools.hxx> 29 30 //------------------------------------------------------------------------ 31 // deklarations 32 //------------------------------------------------------------------------ 33 34 /* 35 an APartment Neutral dataobject wrapper; this wrapper of a IDataObject 36 pointer can be used from any apartment without RPC_E_WRONG_THREAD 37 which normally occurs if an apartment tries to use an interface 38 pointer of another apartment; we use containment to hold the original 39 DataObject 40 */ 41 class CAPNDataObject : public IDataObject 42 { 43 public: 44 CAPNDataObject( IDataObjectPtr rIDataObject ); 45 virtual ~CAPNDataObject( ); 46 47 //----------------------------------------------------------------- 48 //IUnknown interface methods 49 //----------------------------------------------------------------- 50 51 STDMETHODIMP QueryInterface(REFIID iid, LPVOID* ppvObject); 52 STDMETHODIMP_( ULONG ) AddRef( ); 53 STDMETHODIMP_( ULONG ) Release( ); 54 55 //----------------------------------------------------------------- 56 // IDataObject interface methods 57 //----------------------------------------------------------------- 58 59 STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 60 STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 61 STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc ); 62 STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut ); 63 STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease ); 64 STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ); 65 STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection ); 66 STDMETHODIMP DUnadvise( DWORD dwConnection ); 67 STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise ); 68 69 operator IDataObject*( ); 70 71 private: 72 HRESULT MarshalIDataObjectIntoCurrentApartment( IDataObject** ppIDataObj ); 73 74 private: 75 IDataObjectPtr m_rIDataObjectOrg; 76 HGLOBAL m_hGlobal; 77 LONG m_nRefCnt; 78 79 // prevent copy and assignment 80 private: 81 CAPNDataObject( const CAPNDataObject& theOther ); 82 CAPNDataObject& operator=( const CAPNDataObject& theOther ); 83 }; 84 85 #endif 86