projects/activex/objectsafety.h

   1 /*****************************************************************************
   2  * objectsafety.h: ActiveX control for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  *
   6  * Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifndef __OBJECTSAFETY_H__
  24 #define __OBJECTSAFETY_H__
  25
  26 #if HAVE_OBJSAFE_HEADER
  27 /*
  28 ** at last, a version of mingw that supports this header
  29 */
  30 #include <objsafe.h>
  31
  32 #else
  33 /*
  34 ** mingw does not yet support objsafe.h, redefine what we need here
  35 */
  36
  37 // {CB5BDC81-93C1-11cf-8F20-00805F2CD064}
  38 extern "C" const IID IID_IObjectSafety;
  39
  40 #define INTERFACESAFE_FOR_UNTRUSTED_CALLER 1L
  41 #define INTERFACESAFE_FOR_UNTRUSTED_DATA   2L
  42
  43 struct IObjectSafety : public IUnknown
  44 {
  45     virtual STDMETHODIMP GetInterfaceSafetyOptions(
  46         REFIID riid,
  47         DWORD __RPC_FAR *pdwSupportedOptions,
  48         DWORD __RPC_FAR *pdwEnabledOptions
  49     ) = 0;
  50
  51     virtual STDMETHODIMP SetInterfaceSafetyOptions(
  52         REFIID riid,
  53         DWORD dwSupportedOptions,
  54         DWORD dwOptionSetMask
  55     ) = 0;
  56 };
  57
  58 #endif
  59
  60 class VLCObjectSafety : public IObjectSafety
  61 {
  62 public:
  63
  64     VLCObjectSafety(VLCPlugin *p_instance) : _p_instance(p_instance) {};
  65     virtual ~VLCObjectSafety() {};
  66
  67     // IUnknown methods
  68     STDMETHODIMP QueryInterface(REFIID riid, void **ppv)
  69     {
  70         if( NULL == ppv)
  71             return E_POINTER;
  72         if( (IID_IUnknown == riid)
  73          || (IID_IObjectSafety == riid) )
  74         {
  75             AddRef();
  76             *ppv = reinterpret_cast<LPVOID>(this);
  77             return NOERROR;
  78         }
  79         return _p_instance->pUnkOuter->QueryInterface(riid, ppv);
  80     };
  81
  82     STDMETHODIMP_(ULONG) AddRef(void) { return _p_instance->pUnkOuter->AddRef(); };
  83     STDMETHODIMP_(ULONG) Release(void) { return _p_instance->pUnkOuter->Release(); };
  84
  85     // IUnknown methods
  86     STDMETHODIMP GetInterfaceSafetyOptions(
  87         REFIID riid,
  88         DWORD *pdwSupportedOptions,
  89         DWORD *pdwEnabledOptions
  90     );
  91
  92     STDMETHODIMP SetInterfaceSafetyOptions(
  93         REFIID riid,
  94         DWORD dwOptionSetMask,
  95         DWORD dwEnabledOptions
  96     );
  97
  98 private:
  99
 100     VLCPlugin *_p_instance;
 101 };
 102
 103 #endif