projects/activex/viewobject.h

   1 /*****************************************************************************
   2  * persiststorage.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 __VIEWOBJECT_H__
  24 #define __VIEWOBJECT_H__
  25
  26 #include <oleidl.h>
  27
  28 class VLCViewObject : public IViewObject2
  29 {
  30
  31 public:
  32
  33     VLCViewObject(VLCPlugin *p_instance) : _p_instance(p_instance),
  34         _dwAspect(0), _advf(0), _pAdvSink(NULL) {};
  35     virtual ~VLCViewObject() {};
  36
  37     // IUnknown methods
  38     STDMETHODIMP QueryInterface(REFIID riid, void **ppv)
  39     {
  40         if( NULL == ppv )
  41             return E_POINTER;
  42         if( (IID_IUnknown == riid)
  43          || (IID_IViewObject == riid)
  44          || (IID_IViewObject2 == riid) )
  45         {
  46             AddRef();
  47             *ppv = reinterpret_cast<LPVOID>(this);
  48             return NOERROR;
  49         }
  50         return _p_instance->pUnkOuter->QueryInterface(riid, ppv);
  51     };
  52
  53     STDMETHODIMP_(ULONG) AddRef(void) { return _p_instance->pUnkOuter->AddRef(); };
  54     STDMETHODIMP_(ULONG) Release(void) { return _p_instance->pUnkOuter->Release(); };
  55
  56     // IViewObject methods
  57     STDMETHODIMP Draw(DWORD,LONG,PVOID,DVTARGETDEVICE*,HDC,HDC,LPCRECTL,LPCRECTL,BOOL(CALLBACK *)(DWORD),DWORD);
  58     STDMETHODIMP Freeze(DWORD,LONG,PVOID,LPDWORD);
  59     STDMETHODIMP GetAdvise(LPDWORD,LPDWORD,LPADVISESINK *);
  60     STDMETHODIMP GetColorSet(DWORD,LONG,PVOID,DVTARGETDEVICE *,HDC,LPLOGPALETTE *);
  61     STDMETHODIMP SetAdvise(DWORD,DWORD,LPADVISESINK);
  62     STDMETHODIMP Unfreeze(DWORD);
  63
  64     // IViewObject2 methods
  65     STDMETHODIMP GetExtent(DWORD,LONG,DVTARGETDEVICE *,LPSIZEL);
  66
  67 private:
  68
  69     VLCPlugin *_p_instance;
  70
  71     // Advise Sink support
  72     DWORD _dwAspect;
  73     DWORD _advf;
  74     LPADVISESINK _pAdvSink;
  75 };
  76
  77 #endif
  78