X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ed4b0fdca60e017afe72c55940799ce0fed925f0..0d53638f7147c18153f63fdfc096b17be6e22a27:/src/msw/ole/activex.cpp diff --git a/src/msw/ole/activex.cpp b/src/msw/ole/activex.cpp index 108bd936b9..654fe80c3a 100644 --- a/src/msw/ole/activex.cpp +++ b/src/msw/ole/activex.cpp @@ -4,7 +4,6 @@ // Author: Ryan Norton , Lindsay Mathieson // Modified by: // Created: 11/07/04 -// RCS-ID: $Id$ // Copyright: (c) 2003 Lindsay Mathieson, (c) 2005 Ryan Norton // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -23,28 +22,29 @@ #pragma hdrstop #endif +#if wxUSE_ACTIVEX + #ifndef WX_PRECOMP #include "wx/dcclient.h" + #include "wx/math.h" #endif -#include "wx/math.h" - -// I don't know why members of tagVARIANT aren't found when compiling -// with Wine -#ifndef __WINE__ +#include "wx/msw/dc.h" #include "wx/msw/ole/activex.h" +#include "wx/msw/private.h" // for wxCopyRectToRECT + // autointerfaces that we only use here -WX_DECLARE_AUTOOLE(wxAutoIOleInPlaceSite, IOleInPlaceSite) -WX_DECLARE_AUTOOLE(wxAutoIOleDocument, IOleDocument) -WX_DECLARE_AUTOOLE(wxAutoIPersistStreamInit, IPersistStreamInit) -WX_DECLARE_AUTOOLE(wxAutoIAdviseSink, IAdviseSink) -WX_DECLARE_AUTOOLE(wxAutoIProvideClassInfo, IProvideClassInfo) -WX_DECLARE_AUTOOLE(wxAutoITypeInfo, ITypeInfo) -WX_DECLARE_AUTOOLE(wxAutoIConnectionPoint, IConnectionPoint) -WX_DECLARE_AUTOOLE(wxAutoIConnectionPointContainer, IConnectionPointContainer) +typedef wxAutoOleInterface wxAutoIOleInPlaceSite; +typedef wxAutoOleInterface wxAutoIOleDocument; +typedef wxAutoOleInterface wxAutoIPersistStreamInit; +typedef wxAutoOleInterface wxAutoIAdviseSink; +typedef wxAutoOleInterface wxAutoIProvideClassInfo; +typedef wxAutoOleInterface wxAutoITypeInfo; +typedef wxAutoOleInterface wxAutoIConnectionPoint; +typedef wxAutoOleInterface wxAutoIConnectionPointContainer; -DEFINE_EVENT_TYPE(wxEVT_ACTIVEX) +wxDEFINE_EVENT( wxEVT_ACTIVEX, wxActiveXEvent ); // Ole class helpers (sort of MFC-like) from wxActiveX #define DECLARE_OLE_UNKNOWN(cls)\ @@ -53,7 +53,7 @@ DEFINE_EVENT_TYPE(wxEVT_ACTIVEX) {\ public:\ LONG l;\ - TAutoInitInt() : l(0) {}\ + TAutoInitInt() : l(1) {}\ };\ TAutoInitInt refCount, lockCount;\ static void _GetInterface(cls *self, REFIID iid, void **_interface, const char *&desc);\ @@ -353,7 +353,7 @@ public: HRESULT STDMETHODCALLTYPE TranslateAccelerator(LPMSG lpmsg, WORD) { // TODO: send an event with this id - if (m_window->m_oleInPlaceActiveObject.Ok()) + if (m_window->m_oleInPlaceActiveObject.IsOk()) m_window->m_oleInPlaceActiveObject->TranslateAccelerator(lpmsg); return S_FALSE; } @@ -424,7 +424,7 @@ public: HRESULT STDMETHODCALLTYPE DeactivateAndUndo(){return S_OK; } HRESULT STDMETHODCALLTYPE OnPosRectChange(LPCRECT lprcPosRect) { - if (m_window->m_oleInPlaceObject.Ok() && lprcPosRect) + if (m_window->m_oleInPlaceObject.IsOk() && lprcPosRect) { // // Result of several hours and days of bug hunting - @@ -605,7 +605,7 @@ public: { wxAutoIOleInPlaceSite inPlaceSite( IID_IOleInPlaceSite, (IDispatch *) this); - if (!inPlaceSite.Ok()) + if (!inPlaceSite.IsOk()) return E_FAIL; if (pViewToActivate) @@ -617,7 +617,7 @@ public: { wxAutoIOleDocument oleDoc( IID_IOleDocument, m_window->m_oleObject); - if (! oleDoc.Ok()) + if (! oleDoc.IsOk()) return E_FAIL; HRESULT hr = oleDoc->CreateView(inPlaceSite, NULL, @@ -632,6 +632,10 @@ public: return S_OK; } + friend bool QueryClientSiteInterface(FrameSite *self, REFIID iid, void **_interface, const char *&desc) + { + return self->m_window->QueryClientSiteInterface(iid,_interface,desc); + } protected: wxActiveXContainer * m_window; @@ -669,6 +673,7 @@ DEFINE_OLE_TABLE(FrameSite) OLE_IINTERFACE(IOleDocumentSite) OLE_IINTERFACE(IAdviseSink) OLE_IINTERFACE(IOleControlSite) + OLE_INTERFACE_CUSTOM(QueryClientSiteInterface) END_OLE_TABLE @@ -693,6 +698,13 @@ private: friend bool wxActiveXEventsInterface(wxActiveXEvents *self, REFIID iid, void **_interface, const char *&desc); public: + + // a pointer to this static variable is used as an 'invalid_entry_marker' + // wxVariants containing a void* to this variables are 'empty' in the sense + // that the actual ActiveX OLE parameter has not been converted and inserted + // into m_params. + static wxVariant ms_invalidEntryMarker; + wxActiveXEvents(wxActiveXContainer *ax) : m_activeX(ax), m_haveCustomId(false) {} wxActiveXEvents(wxActiveXContainer *ax, REFIID iid) : m_activeX(ax), m_customId(iid), m_haveCustomId(true) {} virtual ~wxActiveXEvents() @@ -716,11 +728,11 @@ public: } - STDMETHODIMP Invoke(DISPID dispIdMember, REFIID WXUNUSED(riid), - LCID WXUNUSED(lcid), + STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, + LCID lcid, WORD wFlags, DISPPARAMS * pDispParams, - VARIANT * WXUNUSED(pVarResult), EXCEPINFO * WXUNUSED(pExcepInfo), - unsigned int * WXUNUSED(puArgErr)) + VARIANT * pVarResult, EXCEPINFO * pExcepInfo, + unsigned int * puArgErr) { if (wFlags & (DISPATCH_PROPERTYGET | DISPATCH_PROPERTYPUT | DISPATCH_PROPERTYPUTREF)) return E_NOTIMPL; @@ -732,31 +744,37 @@ public: // Dispatch Event wxActiveXEvent event; event.SetEventType(wxEVT_ACTIVEX); + // Create an empty list of Variants + // Note that the event parameters use lazy evaluation + // They are not actually created until wxActiveXEvent::operator[] is called event.m_params.NullList(); event.m_dispid = dispIdMember; - // arguments - if (pDispParams) - { - for (DWORD i = pDispParams->cArgs; i > 0; i--) - { - VARIANTARG& va = pDispParams->rgvarg[i-1]; - wxVariant vx; + // save the native (MSW) event parameters for event handlers that need to access them + // this can be done on the stack since wxActiveXEvent is also allocated on the stack + wxActiveXEventNativeMSW eventParameters(dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr); + event.SetClientData(&eventParameters); -// vx.SetName(px.name); - wxConvertOleToVariant(va, vx); - event.m_params.Append(vx); - } - } + // The event parameters are not copied to event.m_params until they are actually + // referenced in wxActiveXEvent::operator[] + // This increases performance and avoids error messages and/or crashes + // when the event has parameters that are not (yet or never) supported + // by wxConvertOleToVariant // process the events from the activex method - m_activeX->ProcessEvent(event); + m_activeX->ProcessEvent(event); for (DWORD i = 0; i < pDispParams->cArgs; i++) { - VARIANTARG& va = pDispParams->rgvarg[i]; - wxVariant& vx = - event.m_params[pDispParams->cArgs - i - 1]; - wxConvertVariantToOle(vx, va); + size_t params_index = pDispParams->cArgs - i - 1; + if (params_index < event.m_params.GetCount()) { + wxVariant &vx = event.m_params[params_index]; + // copy the result back to pDispParams only if the event has been accessed + // i.e. if vx != ms_invalidEntryMarker + if (!vx.IsType(wxActiveXEvents::ms_invalidEntryMarker.GetType()) || vx!=ms_invalidEntryMarker) { + VARIANTARG& va = pDispParams->rgvarg[i]; + wxConvertVariantToOle(vx, va); + } + } } if(event.GetSkipped()) @@ -766,11 +784,61 @@ public: } }; +namespace +{ +// just a unique global variable +const int invalid_entry_marker = 0; +} + +wxVariant wxActiveXEvents::ms_invalidEntryMarker((void*)&invalid_entry_marker); + +size_t wxActiveXEvent::ParamCount() const +{ + wxActiveXEventNativeMSW *native=GetNativeParameters(); + // 'native' will always be != if the event has been created + // for an actual active X event. + // But it may be zero if the event has been created by wx program code. + if (native) + return native->pDispParams ? native->pDispParams->cArgs : 0; + + return m_params.GetCount(); +} + +wxVariant &wxActiveXEvent::operator [](size_t idx) +{ + wxASSERT(idx < ParamCount()); + wxActiveXEventNativeMSW *native=GetNativeParameters(); + // 'native' will always be != if the event has been created + // for an actual active X event. + // But it may be zero if the event has been created by wx program code. + if (native) + { + while ( m_params.GetCount()<=idx ) + { + m_params.Append(wxActiveXEvents::ms_invalidEntryMarker); + } + + wxVariant& vx = m_params[idx]; + if ( vx.IsType(wxActiveXEvents::ms_invalidEntryMarker.GetType()) && + vx == wxActiveXEvents::ms_invalidEntryMarker) + { + // copy the _real_ parameter into this one + // NOTE: m_params stores the parameters in *reverse* order. + // Whyever, but this was the case in the original implementation of + // wxActiveXEvents::Invoke + // Keep this convention. + VARIANTARG& va = native->pDispParams->rgvarg[ native->pDispParams->cArgs - idx - 1 ]; + wxConvertOleToVariant(va, vx); + } + return vx; + } + return m_params[idx]; +} + bool wxActiveXEventsInterface(wxActiveXEvents *self, REFIID iid, void **_interface, const char *&desc) { if (self->m_haveCustomId && IsEqualIID(iid, self->m_customId)) { -// WXOLE_TRACE("Found Custom Dispatch Interface"); *_interface = (IUnknown *) (IDispatch *) self; desc = "Custom Dispatch Interface"; return true; @@ -814,13 +882,13 @@ wxActiveXContainer::wxActiveXContainer(wxWindow * parent, wxActiveXContainer::~wxActiveXContainer() { // disconnect connection points - if (m_oleInPlaceObject.Ok()) + if (m_oleInPlaceObject.IsOk()) { m_oleInPlaceObject->InPlaceDeactivate(); m_oleInPlaceObject->UIDeactivate(); } - if (m_oleObject.Ok()) + if (m_oleObject.IsOk()) { if (m_docAdviseCookie != 0) m_oleObject->Unadvise(m_docAdviseCookie); @@ -830,8 +898,24 @@ wxActiveXContainer::~wxActiveXContainer() m_oleObject->Close(OLECLOSE_NOSAVE); m_oleObject->SetClientSite(NULL); } + + // m_clientSite uses m_frameSite so destroy it first + m_clientSite.Free(); + delete m_frameSite; + + // our window doesn't belong to us, don't destroy it + m_hWnd = NULL; } +// VZ: we might want to really report an error instead of just asserting here +#if wxDEBUG_LEVEL + #define CHECK_HR(hr) \ + wxASSERT_LEVEL_2_MSG( SUCCEEDED(hr), \ + wxString::Format("HRESULT = %X", (unsigned)(hr)) ) +#else + #define CHECK_HR(hr) wxUnusedVar(hr) +#endif + //--------------------------------------------------------------------------- // wxActiveXContainer::CreateActiveX // @@ -844,20 +928,21 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) { HRESULT hret; hret = m_ActiveX.QueryInterface(iid, pUnk); - wxASSERT(SUCCEEDED(hret)); + CHECK_HR(hret); // FrameSite - FrameSite *frame = new FrameSite(m_realparent, this); + m_frameSite = new FrameSite(m_realparent, this); // oleClientSite hret = m_clientSite.QueryInterface( - IID_IOleClientSite, (IDispatch *) frame); - wxASSERT(SUCCEEDED(hret)); + IID_IOleClientSite, (IDispatch *) m_frameSite); + CHECK_HR(hret); // adviseSink - wxAutoIAdviseSink adviseSink(IID_IAdviseSink, (IDispatch *) frame); - wxASSERT(adviseSink.Ok()); + wxAutoIAdviseSink adviseSink(IID_IAdviseSink, (IDispatch *) m_frameSite); + wxASSERT(adviseSink.IsOk()); // Get Dispatch interface hret = m_Dispatch.QueryInterface(IID_IDispatch, m_ActiveX); + CHECK_HR(hret); // // SETUP TYPEINFO AND ACTIVEX EVENTS @@ -865,17 +950,18 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) // get type info via class info wxAutoIProvideClassInfo classInfo(IID_IProvideClassInfo, m_ActiveX); - wxASSERT(classInfo.Ok()); + wxASSERT(classInfo.IsOk()); // type info wxAutoITypeInfo typeInfo; hret = classInfo->GetClassInfo(typeInfo.GetRef()); - wxASSERT(typeInfo.Ok()); + CHECK_HR(hret); + wxASSERT(typeInfo.IsOk()); // TYPEATTR TYPEATTR *ta = NULL; hret = typeInfo->GetTypeAttr(&ta); - wxASSERT(ta); + CHECK_HR(hret); // this should be a TKIND_COCLASS wxASSERT(ta->typekind == TKIND_COCLASS); @@ -893,11 +979,12 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) // get dispatch type info interface wxAutoITypeInfo ti; hret = typeInfo->GetRefTypeInfo(rt, ti.GetRef()); - if (! ti.Ok()) + if (! ti.IsOk()) continue; + CHECK_HR(hret); + // check if default event sink - bool defInterface = false; bool defEventSink = false; int impTypeFlags = 0; typeInfo->GetImplTypeFlags(i, &impTypeFlags); @@ -915,11 +1002,6 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) wxFAIL_MSG(wxT("Default event sink is in vtable!")); } } - else - { - // WXOLE_TRACEOUT("Default Interface"); - defInterface = true; - } } @@ -927,7 +1009,7 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) // TYPEATTR TYPEATTR *ta = NULL; hret = ti->GetTypeAttr(&ta); - wxASSERT(ta); + CHECK_HR(hret); if (ta->typekind == TKIND_DISPATCH) { @@ -938,19 +1020,31 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) DWORD adviseCookie = 0; wxAutoIConnectionPointContainer cpContainer(IID_IConnectionPointContainer, m_ActiveX); - wxASSERT( cpContainer.Ok()); + wxASSERT( cpContainer.IsOk()); HRESULT hret = cpContainer->FindConnectionPoint(ta->guid, cp.GetRef()); - wxASSERT ( SUCCEEDED(hret)); - - IDispatch* disp; - frame->QueryInterface(IID_IDispatch, (void**)&disp); - hret = cp->Advise(new wxActiveXEvents(this, ta->guid), - &adviseCookie); - wxASSERT_MSG( SUCCEEDED(hret), - wxString::Format(wxT("Cannot connect!\nHRESULT:%X"), (unsigned int)hret) - ); + + // Notice that the return value of CONNECT_E_NOCONNECTION is + // expected if the interface doesn't support connection points. + if ( hret != CONNECT_E_NOCONNECTION ) + { + CHECK_HR(hret); + } + + if ( cp ) + { + wxActiveXEvents * const + events = new wxActiveXEvents(this, ta->guid); + hret = cp->Advise(events, &adviseCookie); + + // We don't need this object any more and cp will keep a + // reference to it if it needs it, i.e. if Advise() + // succeeded. + events->Release(); + + CHECK_HR(hret); + } } } @@ -966,15 +1060,17 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) // Get IOleObject interface hret = m_oleObject.QueryInterface(IID_IOleObject, m_ActiveX); - wxASSERT(SUCCEEDED(hret)); + CHECK_HR(hret); // get IViewObject Interface hret = m_viewObject.QueryInterface(IID_IViewObject, m_ActiveX); - wxASSERT(SUCCEEDED(hret)); + CHECK_HR(hret); // document advise m_docAdviseCookie = 0; hret = m_oleObject->Advise(adviseSink, &m_docAdviseCookie); + CHECK_HR(hret); + // TODO:Needed? // hret = m_viewObject->SetAdvise(DVASPECT_CONTENT, 0, adviseSink); m_oleObject->SetHostNames(L"wxActiveXContainer", NULL); @@ -985,12 +1081,12 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) // Get IOleInPlaceObject interface hret = m_oleInPlaceObject.QueryInterface( IID_IOleInPlaceObject, m_ActiveX); - wxASSERT(SUCCEEDED(hret)); + CHECK_HR(hret); // status DWORD dwMiscStatus; m_oleObject->GetMiscStatus(DVASPECT_CONTENT, &dwMiscStatus); - wxASSERT(SUCCEEDED(hret)); + CHECK_HR(hret); // set client site first ? if (dwMiscStatus & OLEMISC_SETCLIENTSITEFIRST) @@ -1001,43 +1097,50 @@ void wxActiveXContainer::CreateActiveX(REFIID iid, IUnknown* pUnk) wxAutoIPersistStreamInit pPersistStreamInit(IID_IPersistStreamInit, m_oleObject); - if (pPersistStreamInit.Ok()) + if (pPersistStreamInit.IsOk()) { hret = pPersistStreamInit->InitNew(); + CHECK_HR(hret); } if (! (dwMiscStatus & OLEMISC_SETCLIENTSITEFIRST)) m_oleObject->SetClientSite(m_clientSite); - RECT posRect; - ::GetClientRect((HWND)m_realparent->GetHWND(), &posRect); - m_oleObjectHWND = 0; - if (m_oleInPlaceObject.Ok()) - { - hret = m_oleInPlaceObject->GetWindow(&m_oleObjectHWND); - if (SUCCEEDED(hret)) - ::SetActiveWindow(m_oleObjectHWND); - } - if (! (dwMiscStatus & OLEMISC_INVISIBLEATRUNTIME)) { - if (posRect.right > 0 && posRect.bottom > 0 && - m_oleInPlaceObject.Ok()) - m_oleInPlaceObject->SetObjectRects(&posRect, &posRect); + RECT posRect; + wxCopyRectToRECT(m_realparent->GetClientSize(), posRect); hret = m_oleObject->DoVerb(OLEIVERB_INPLACEACTIVATE, NULL, m_clientSite, 0, (HWND)m_realparent->GetHWND(), &posRect); + CHECK_HR(hret); + + if (m_oleInPlaceObject.IsOk()) + { + hret = m_oleInPlaceObject->GetWindow(&m_oleObjectHWND); + CHECK_HR(hret); + ::SetActiveWindow(m_oleObjectHWND); + } + + if (posRect.right > 0 && posRect.bottom > 0 && + m_oleInPlaceObject.IsOk()) + { + m_oleInPlaceObject->SetObjectRects(&posRect, &posRect); + } + hret = m_oleObject->DoVerb(OLEIVERB_SHOW, 0, m_clientSite, 0, (HWND)m_realparent->GetHWND(), &posRect); + CHECK_HR(hret); } - if (! m_oleObjectHWND && m_oleInPlaceObject.Ok()) + if (! m_oleObjectHWND && m_oleInPlaceObject.IsOk()) { hret = m_oleInPlaceObject->GetWindow(&m_oleObjectHWND); + CHECK_HR(hret); } if (m_oleObjectHWND) @@ -1079,14 +1182,12 @@ void wxActiveXContainer::OnSize(wxSizeEvent& event) posRect.right = w; posRect.bottom = h; - if (w <= 0 && h <= 0) + if (w <= 0 || h <= 0) return; // extents are in HIMETRIC units - if (m_oleObject.Ok()) + if (m_oleObject.IsOk()) { - m_oleObject->DoVerb(OLEIVERB_HIDE, 0, m_clientSite, 0, - (HWND)m_realparent->GetHWND(), &posRect); SIZEL sz = {w, h}; PixelsToHimetric(sz); @@ -1097,11 +1198,9 @@ void wxActiveXContainer::OnSize(wxSizeEvent& event) if (sz2.cx != sz.cx || sz.cy != sz2.cy) m_oleObject->SetExtent(DVASPECT_CONTENT, &sz); - m_oleObject->DoVerb(OLEIVERB_SHOW, 0, m_clientSite, 0, - (HWND)m_realparent->GetHWND(), &posRect); } - if (m_oleInPlaceObject.Ok()) + if (m_oleInPlaceObject.IsOk()) m_oleInPlaceObject->SetObjectRects(&posRect, &posRect); event.Skip(); @@ -1132,8 +1231,9 @@ void wxActiveXContainer::OnPaint(wxPaintEvent& WXUNUSED(event)) ::InvalidateRect(m_oleObjectHWND, NULL, false); #endif RECTL *prcBounds = (RECTL *) &posRect; + wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl ); m_viewObject->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL, - (HDC)dc.GetHDC(), prcBounds, NULL, NULL, 0); + (HDC)msw->GetHDC(), prcBounds, NULL, NULL, 0); } } @@ -1144,7 +1244,7 @@ void wxActiveXContainer::OnPaint(wxPaintEvent& WXUNUSED(event)) //--------------------------------------------------------------------------- void wxActiveXContainer::OnSetFocus(wxFocusEvent& event) { - if (m_oleInPlaceActiveObject.Ok()) + if (m_oleInPlaceActiveObject.IsOk()) m_oleInPlaceActiveObject->OnFrameWindowActivate(TRUE); event.Skip(); @@ -1158,11 +1258,39 @@ void wxActiveXContainer::OnSetFocus(wxFocusEvent& event) //--------------------------------------------------------------------------- void wxActiveXContainer::OnKillFocus(wxFocusEvent& event) { - if (m_oleInPlaceActiveObject.Ok()) + if (m_oleInPlaceActiveObject.IsOk()) m_oleInPlaceActiveObject->OnFrameWindowActivate(FALSE); event.Skip(); } -#endif -// __WINE__ +//--------------------------------------------------------------------------- +// wxActiveXContainer::MSWTranslateMessage +// +// Called for every message that needs to be translated. +// Some controls might need more keyboard keys to process (CTRL-C, CTRL-A etc), +// In that case TranslateAccelerator should always be called first. +//--------------------------------------------------------------------------- +bool wxActiveXContainer::MSWTranslateMessage(WXMSG* pMsg) +{ + if(m_oleInPlaceActiveObject.IsOk() && m_oleInPlaceActiveObject->TranslateAccelerator(pMsg) == S_OK) + { + return true; + } + return wxWindow::MSWTranslateMessage(pMsg); +} + +//--------------------------------------------------------------------------- +// wxActiveXContainer::QueryClientSiteInterface +// +// Called in the host's site's query method for other interfaces. +//--------------------------------------------------------------------------- +bool wxActiveXContainer::QueryClientSiteInterface(REFIID iid, void **_interface, const char *&desc) +{ + wxUnusedVar(iid); + wxUnusedVar(_interface); + wxUnusedVar(desc); + return false; +} + +#endif // wxUSE_ACTIVEX