// Purpose: interface of wxActiveXEvent
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
@class wxActiveXEvent
- @headerfile ole/activex.h wx/msw/ole/activex.h
- An event class for handling activex events passed from wxActiveXContainer.
+ An event class for handling ActiveX events passed from wxActiveXContainer.
ActiveX events are basically a function call with the parameters passed
through an array of wxVariants along with a return value that is a wxVariant
itself. What type the parameters or return value are depends on the context
(i.e. what the .idl specifies).
- Note that unlike the third party wxActiveX function names are not supported.
+ @beginEventTable{wxActiveXEvent}
+ @event{EVT_ACTIVEX(func)}
+ Sent when the ActiveX control hosted by wxActiveXContainer receives an
+ ActiveX event.
+ @endEventTable
+
+ ActiveX event parameters can get extremely complex and may be beyond the
+ abilities of wxVariant. If 'operator[]' fails, prints an error messages or
+ crashes the application, event handlers should use GetNativeParameters()
+ instead to obtain the original event information.
+ Calls to operator[] and GetNativeParmeters() can be mixed. It is valid
+ to handle some parameters of an event with operator[] and others directly
+ through GetNativeParameters(). It is \b not valid however to manipulate
+ the same parameter using both approaches at the same time.
@onlyfor{wxmsw}
- @library{wxbase}
- @category{FIXME}
+ @library{wxcore}
+ @category{events}
*/
class wxActiveXEvent : public wxCommandEvent
{
public:
/**
- Returns the dispatch id of this activex event. This is the numeric value from
- the .idl file specified by the id().
+ Returns the dispatch id of this ActiveX event.
+ This is the numeric value from the .idl file specified by the id().
*/
DISPID GetDispatchId(int idx) const;
/**
- Obtains the number of parameters passed through the activex event.
+ Obtains the number of parameters passed through the ActiveX event.
*/
size_t ParamCount() const;
Obtains the actual parameter value specified by idx.
*/
wxVariant operator[](size_t idx);
+
+ /**
+ Obtain the original MSW parameters for the event.
+ Event handlers can use this information to handle complex event parameters
+ that are beyond the scope of wxVariant.
+ The information returned here is the information passed to the original
+ 'Invoke' method call.
+ \return a pointer to a struct containing the original MSW event parameters
+ */
+ wxActiveXEventNativeMSW *GetNativeParameters() const;
};
/**
@class wxActiveXContainer
- @headerfile ole/activex.h wx/msw/ole/activex.h
- wxActiveXContainer is a host for an activex control on Windows (and
- as such is a platform-specific class). Note that the HWND that the class
- contains is the actual HWND of the activex control so using dynamic events
- and connecting to wxEVT_SIZE, for example, will recieve the actual size
- message sent to the control.
+ wxActiveXContainer is a host for an ActiveX control on Windows (and as such
+ is a platform-specific class).
+
+ Note that the HWND that the class contains is the actual HWND of the ActiveX
+ control so using dynamic events and connecting to @c wxEVT_SIZE, for example,
+ will receive the actual size message sent to the control.
It is somewhat similar to the ATL class CAxWindow in operation.
- The size of the activex control's content is generally gauranteed to be that
+ The size of the ActiveX control's content is generally guaranteed to be that
of the client size of the parent of this wxActiveXContainer.
- You can also process activex events through wxEVT_ACTIVEX or the
- corresponding message map macro EVT_ACTIVEX.
+ You can also process ActiveX events through wxActiveXEvent.
+
+
+ @section activexcontainer_example Example
+
+ This is an example of how to use the Adobe Acrobat Reader ActiveX control to
+ read PDF files (requires Acrobat Reader 4 and up).
+ Controls like this are typically found and dumped from OLEVIEW.exe that is
+ distributed with Microsoft Visual C++.
+ This example also demonstrates how to create a backend for wxMediaCtrl.
+
+ @code
+ //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ //
+ // wxPDFMediaBackend
+ //
+ // http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/iac/IACOverview.pdf
+ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+ #include "wx/mediactrl.h" // wxMediaBackendCommonBase
+ #include "wx/msw/ole/activex.h" // wxActiveXContainer
+ #include "wx/msw/ole/automtn.h" // wxAutomationObject
+
+ const IID DIID__DPdf = {0xCA8A9781,0x280D,0x11CF,{0xA2,0x4D,0x44,0x45,0x53,0x54,0x00,0x00}};
+ const IID DIID__DPdfEvents = {0xCA8A9782,0x280D,0x11CF,{0xA2,0x4D,0x44,0x45,0x53,0x54,0x00,0x00}};
+ const CLSID CLSID_Pdf = {0xCA8A9780,0x280D,0x11CF,{0xA2,0x4D,0x44,0x45,0x53,0x54,0x00,0x00}};
+
+ class WXDLLIMPEXP_MEDIA wxPDFMediaBackend : public wxMediaBackendCommonBase
+ {
+ public:
+ wxPDFMediaBackend() : m_pAX(NULL) {}
+ virtual ~wxPDFMediaBackend()
+ {
+ if(m_pAX)
+ {
+ m_pAX->DissociateHandle();
+ delete m_pAX;
+ }
+ }
+ virtual bool CreateControl(wxControl* ctrl, wxWindow* parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+ {
+ IDispatch* pDispatch;
+ if( ::CoCreateInstance(CLSID_Pdf, NULL,
+ CLSCTX_INPROC_SERVER,
+ DIID__DPdf, (void**)&pDispatch) != 0 )
+ return false;
+
+ m_PDF.SetDispatchPtr(pDispatch); // wxAutomationObject will release itself
+
+ if ( !ctrl->wxControl::Create(parent, id, pos, size,
+ (style & ~wxBORDER_MASK) | wxBORDER_NONE,
+ validator, name) )
+ return false;
+
+ m_ctrl = wxStaticCast(ctrl, wxMediaCtrl);
+ m_pAX = new wxActiveXContainer(ctrl,
+ DIID__DPdf,
+ pDispatch);
+
+ wxPDFMediaBackend::ShowPlayerControls(wxMEDIACTRLPLAYERCONTROLS_NONE);
+ return true;
+ }
+
+ virtual bool Play()
+ {
+ return true;
+ }
+ virtual bool Pause()
+ {
+ return true;
+ }
+ virtual bool Stop()
+ {
+ return true;
+ }
+
+ virtual bool Load(const wxString& fileName)
+ {
+ if(m_PDF.CallMethod("LoadFile", fileName).GetBool())
+ {
+ m_PDF.CallMethod("setCurrentPage", wxVariant((long)0));
+ NotifyMovieLoaded(); // initial refresh
+ wxSizeEvent event;
+ m_pAX->OnSize(event);
+ return true;
+ }
+
+ return false;
+ }
+ virtual bool Load(const wxURI& location)
+ {
+ return m_PDF.CallMethod("LoadFile", location.BuildUnescapedURI()).GetBool();
+ }
+ virtual bool Load(const wxURI& WXUNUSED(location),
+ const wxURI& WXUNUSED(proxy))
+ {
+ return false;
+ }
+
+ virtual wxMediaState GetState()
+ {
+ return wxMEDIASTATE_STOPPED;
+ }
+
+ virtual bool SetPosition(wxLongLong where)
+ {
+ m_PDF.CallMethod("setCurrentPage", wxVariant((long)where.GetValue()));
+ return true;
+ }
+ virtual wxLongLong GetPosition()
+ {
+ return 0;
+ }
+ virtual wxLongLong GetDuration()
+ {
+ return 0;
+ }
+
+ virtual void Move(int WXUNUSED(x), int WXUNUSED(y),
+ int WXUNUSED(w), int WXUNUSED(h))
+ {
+ }
+ wxSize GetVideoSize() const
+ {
+ return wxDefaultSize;
+ }
+
+ virtual double GetPlaybackRate()
+ {
+ return 0;
+ }
+ virtual bool SetPlaybackRate(double)
+ {
+ return false;
+ }
+
+ virtual double GetVolume()
+ {
+ return 0;
+ }
+ virtual bool SetVolume(double)
+ {
+ return false;
+ }
+
+ virtual bool ShowPlayerControls(wxMediaCtrlPlayerControls flags)
+ {
+ if(flags)
+ {
+ m_PDF.CallMethod("setShowToolbar", true);
+ m_PDF.CallMethod("setShowScrollbars", true);
+ }
+ else
+ {
+ m_PDF.CallMethod("setShowToolbar", false);
+ m_PDF.CallMethod("setShowScrollbars", false);
+ }
+
+ return true;
+ }
+
+ wxActiveXContainer* m_pAX;
+ wxAutomationObject m_PDF;
+
+ wxDECLARE_DYNAMIC_CLASS(wxPDFMediaBackend)
+ };
+
+ wxIMPLEMENT_DYNAMIC_CLASS(wxPDFMediaBackend, wxMediaBackend);
+
+ // Put this in one of your existing source files and then create a wxMediaCtrl with
+ wxMediaCtrl* mymediactrl = new wxMediaCtrl(this, "myfile.pdf", wxID_ANY,
+ wxDefaultPosition, wxSize(300,300),
+ 0, "wxPDFMediaBackend");
+ // [this] is the parent window, "myfile.pdf" is the PDF file to open
+ @endcode
+
@onlyfor{wxmsw}
@library{wxbase}
- @category{FIXME}
+ @category{ctrl,ipc}
- @see wxActiveXEvent
+ @see wxActiveXEvent, @ref page_samples_flash
*/
class wxActiveXContainer : public wxControl
{
public:
/**
- Creates this activex container.
+ Creates this ActiveX container.
@param parent
- parent of this control. Must not be @NULL.
+ parent of this control. Must not be @NULL.
@param iid
- COM IID of pUnk to query. Must be a valid interface to an activex control.
+ COM IID of pUnk to query. Must be a valid interface to an ActiveX control.
@param pUnk
- Interface of activex control.
+ Interface of ActiveX control.
*/
wxActiveXContainer(wxWindow* parent, REFIID iid, IUnknown* pUnk);
+ /**
+ Queries host's site for interface.
+
+ @param iid
+ The iid of the required interface.
+ @param _interface
+ Double pointer to outgoing interface. Supply your own interface if desired.
+ @param desc
+ The description of the outgoing interface.
+ @return bool
+ Return true if interface supplied else return false.
+ */
+ virtual bool QueryClientSiteInterface(REFIID iid, void **_interface, const char *&desc);
};
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