597 lines
17 KiB
C++
597 lines
17 KiB
C++
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/////////////////////////////////////////////////////////////////////////////
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// Name: flash.cpp
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// Purpose: Sample showing integration of Flash ActiveX control
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// Author: Vadim Zeitlin
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// Created: 2009-01-13
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// Copyright: (c) 2009 Vadim Zeitlin
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/*
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Documentation for embedding Flash into anything other than a web browser is
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not easy to find, here is the tech note which provided most of the
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information used here: http://www.adobe.com/go/tn_12059
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*/
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef __WXMSW__
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#error "ActiveX controls are MSW-only"
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/cmdline.h"
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#include "wx/filename.h"
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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#include "wx/msw/ole/activex.h"
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// we currently use VC-specific extensions in this sample, it could be
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// rewritten to avoid them if there is real interest in doing it but compiler
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// COM support in MSVC makes the code much simpler to understand
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#ifndef __VISUALC__
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#error "This sample requires Microsoft Visual C++ compiler COM extensions"
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#endif
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// import Flash ActiveX control by using its (standard) type library UUID
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//
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// no_auto_exclude is needed to import IServiceProvider interface defined in
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// this type library even though its name conflicts with a standard Windows
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// interface with the same name
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#import "libid:D27CDB6B-AE6D-11CF-96B8-444553540000" no_auto_exclude
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using namespace ShockwaveFlashObjects;
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const CLSID CLSID_ShockwaveFlash = __uuidof(ShockwaveFlash);
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const IID IID_IShockwaveFlash = __uuidof(IShockwaveFlash);
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inline wxString bstr2wx(const _bstr_t& bstr)
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{
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return wxString(static_cast<const wchar_t *>(bstr));
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}
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inline _bstr_t wx2bstr(const wxString& str)
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{
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return _bstr_t(str.wc_str());
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}
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// taken from type library
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namespace
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{
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const int FLASH_DISPID_ONREADYSTATECHANGE = -609; // DISPID_ONREADYSTATECHANGE
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const int FLASH_DISPID_ONPROGRESS = 0x7a6;
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const int FLASH_DISPID_FSCOMMAND = 0x96;
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const int FLASH_DISPID_FLASHCALL = 0xc5;
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enum FlashState
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{
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FlashState_Unknown = -1,
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FlashState_Loading,
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FlashState_Uninitialized,
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FlashState_Loaded,
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FlashState_Interactive,
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FlashState_Complete,
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FlashState_Max
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};
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} // anonymous namespace
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Define a new application type, each program should derive a class from wxApp
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class FlashApp : public wxApp
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{
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public:
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FlashApp() { }
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virtual bool OnInit();
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virtual void OnInitCmdLine(wxCmdLineParser& parser);
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virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
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virtual bool OnExceptionInMainLoop();
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private:
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wxString m_swf;
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wxDECLARE_NO_COPY_CLASS(FlashApp);
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};
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// Define a new frame type: this is going to be our main frame
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class FlashFrame : public wxFrame
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{
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public:
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// ctor takes ownership of the pointer which must be non-NULL and opens the
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// given SWF file if it's non-empty
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FlashFrame(IShockwaveFlash *flash, const wxString& swf);
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virtual ~FlashFrame();
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void SetMovie(const wxString& movie);
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void Play();
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void Stop();
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private:
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enum
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{
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Flash_Play = 100,
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Flash_Get,
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Flash_Set,
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Flash_Call,
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Flash_CallWithArg
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};
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void OnOpen(wxCommandEvent& event);
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnPlay(wxCommandEvent&) { Play(); }
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void OnStop(wxCommandEvent&) { Stop(); }
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void OnBack(wxCommandEvent& event);
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void OnForward(wxCommandEvent& event);
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void OnInfo(wxCommandEvent& event);
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void OnVarGet(wxCommandEvent& event);
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void OnVarSet(wxCommandEvent& event);
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void OnCall(wxCommandEvent& event);
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void OnCallWithArg(wxCommandEvent& event);
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void OnActiveXEvent(wxActiveXEvent& event);
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// give an error message if hr is not S_OK
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void CheckFlashCall(HRESULT hr, const char *func);
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// return the name of the Flash control state
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wxString GetFlashStateString(int state);
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// call CallFunction() with a single argument of the type specified by
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// argtype or without any arguments if it is empty
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void CallFlashFunc(const wxString& argtype,
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const wxString& func,
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const wxString& arg = wxString());
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const IShockwaveFlashPtr m_flash;
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wxLog *m_oldLog;
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wxString m_swf;
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FlashState m_state;
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wxTextCtrl *m_varname,
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*m_varvalue,
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*m_funcname,
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*m_funcarg;
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wxDECLARE_EVENT_TABLE();
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wxDECLARE_NO_COPY_CLASS(FlashFrame);
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWidgets
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// ----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(FlashFrame, wxFrame)
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EVT_MENU(wxID_OPEN, FlashFrame::OnOpen)
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EVT_MENU(wxID_EXIT, FlashFrame::OnQuit)
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EVT_MENU(wxID_ABOUT, FlashFrame::OnAbout)
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EVT_BUTTON(Flash_Play, FlashFrame::OnPlay)
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EVT_BUTTON(wxID_STOP, FlashFrame::OnStop)
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EVT_BUTTON(wxID_BACKWARD, FlashFrame::OnBack)
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EVT_BUTTON(wxID_FORWARD, FlashFrame::OnForward)
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EVT_BUTTON(wxID_INFO, FlashFrame::OnInfo)
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EVT_BUTTON(Flash_Get, FlashFrame::OnVarGet)
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EVT_BUTTON(Flash_Set, FlashFrame::OnVarSet)
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EVT_BUTTON(Flash_Call, FlashFrame::OnCall)
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EVT_BUTTON(Flash_CallWithArg, FlashFrame::OnCallWithArg)
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EVT_ACTIVEX(wxID_ANY, FlashFrame::OnActiveXEvent)
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wxEND_EVENT_TABLE()
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IMPLEMENT_APP(FlashApp)
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// the application class
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// ----------------------------------------------------------------------------
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void FlashApp::OnInitCmdLine(wxCmdLineParser& parser)
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{
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wxApp::OnInitCmdLine(parser);
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parser.AddParam("SWF file to play",
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wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL);
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}
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bool FlashApp::OnCmdLineParsed(wxCmdLineParser& parser)
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{
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if ( parser.GetParamCount() )
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m_swf = parser.GetParam(0);
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return wxApp::OnCmdLineParsed(parser);
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}
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bool FlashApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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IShockwaveFlash *flash = NULL;
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HRESULT hr = ::CoCreateInstance
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(
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CLSID_ShockwaveFlash,
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NULL,
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CLSCTX_INPROC_SERVER,
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IID_IShockwaveFlash,
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(void **)&flash
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);
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if ( FAILED(hr) )
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{
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wxLogSysError(hr, "Failed to create Flash ActiveX control");
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return false;
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}
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new FlashFrame(flash, m_swf);
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return true;
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}
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bool FlashApp::OnExceptionInMainLoop()
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{
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try
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{
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throw;
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}
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catch ( _com_error& ce )
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{
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wxLogMessage("COM exception: %s", ce.ErrorMessage());
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return true;
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}
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catch ( ... )
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{
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throw;
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}
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}
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// ----------------------------------------------------------------------------
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// main frame creation
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// ----------------------------------------------------------------------------
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// frame constructor
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FlashFrame::FlashFrame(IShockwaveFlash *flash, const wxString& swf)
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: wxFrame(NULL, wxID_ANY, "wxWidgets Flash sample"),
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m_flash(flash, false /* take ownership */),
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m_swf(swf),
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m_state(FlashState_Unknown)
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{
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// set the frame icon
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SetIcon(wxICON(sample));
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// create the new log target before doing anything with the Flash that
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// could result in log messages
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wxTextCtrl * const log = new wxTextCtrl(this, wxID_ANY, "",
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wxDefaultPosition, wxSize(-1, 100),
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wxTE_MULTILINE);
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m_oldLog = wxLog::SetActiveTarget(new wxLogTextCtrl(log));
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#if wxUSE_MENUS
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// create a menu bar
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wxMenu *fileMenu = new wxMenu;
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fileMenu->Append(wxID_OPEN);
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fileMenu->AppendSeparator();
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fileMenu->Append(wxID_EXIT);
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wxMenu *helpMenu = new wxMenu;
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helpMenu->Append(wxID_ABOUT);
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wxMenuBar *menuBar = new wxMenuBar();
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menuBar->Append(fileMenu, "&File");
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menuBar->Append(helpMenu, "&Help");
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SetMenuBar(menuBar);
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#endif // wxUSE_MENUS
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#if wxUSE_STATUSBAR
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CreateStatusBar(2);
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SetStatusText("Welcome to wxWidgets Flash embedding sample");
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SetStatusText("No loaded file", 1);
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#endif // wxUSE_STATUSBAR
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wxPanel * const panel = new wxPanel(this);
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wxSizer * const sizerPanel = new wxBoxSizer(wxVERTICAL);
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wxWindow * const activeXParent = new wxWindow(panel, wxID_ANY,
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wxDefaultPosition,
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wxSize(300, 200));
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new wxActiveXContainer(activeXParent, IID_IShockwaveFlash, flash);
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if ( !swf.empty() )
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SetMovie(swf);
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sizerPanel->Add(activeXParent,
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wxSizerFlags(1).Expand().Border());
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const wxSizerFlags flagsHorz(wxSizerFlags().Centre().HorzBorder());
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wxSizer * const sizerBtns = new wxBoxSizer(wxHORIZONTAL);
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sizerBtns->Add(new wxButton(panel, wxID_BACKWARD), flagsHorz);
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sizerBtns->Add(new wxButton(panel, Flash_Play, "&Play"), flagsHorz);
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sizerBtns->Add(new wxButton(panel, wxID_STOP), flagsHorz);
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sizerBtns->Add(new wxButton(panel, wxID_FORWARD), flagsHorz);
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sizerBtns->AddSpacer(20);
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sizerBtns->Add(new wxButton(panel, wxID_INFO), flagsHorz);
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sizerPanel->Add(sizerBtns, wxSizerFlags().Center().Border());
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wxSizer * const sizerVar = new wxBoxSizer(wxHORIZONTAL);
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sizerVar->Add(new wxStaticText(panel, wxID_ANY, "Variable &name:"),
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flagsHorz);
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m_varname = new wxTextCtrl(panel, wxID_ANY);
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sizerVar->Add(m_varname, flagsHorz);
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sizerVar->Add(new wxStaticText(panel, wxID_ANY, "&value:"),
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flagsHorz);
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m_varvalue = new wxTextCtrl(panel, wxID_ANY);
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sizerVar->Add(m_varvalue, flagsHorz);
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sizerVar->AddSpacer(10);
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sizerVar->Add(new wxButton(panel, Flash_Get, "&Get"), flagsHorz);
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sizerVar->Add(new wxButton(panel, Flash_Set, "&Set"), flagsHorz);
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sizerPanel->Add(sizerVar, wxSizerFlags().Center().Border());
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wxSizer * const sizerCall = new wxBoxSizer(wxHORIZONTAL);
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sizerCall->Add(new wxStaticText(panel, wxID_ANY, "&Function name:"),
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flagsHorz);
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m_funcname = new wxTextCtrl(panel, wxID_ANY);
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sizerCall->Add(m_funcname, flagsHorz);
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sizerCall->Add(new wxButton(panel, Flash_Call, "&Call"), flagsHorz);
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sizerCall->Add(new wxStaticText(panel, wxID_ANY, "&argument:"),
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flagsHorz);
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m_funcarg = new wxTextCtrl(panel, wxID_ANY);
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sizerCall->Add(m_funcarg, flagsHorz);
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sizerCall->Add(new wxButton(panel, Flash_CallWithArg, "Call &with arg"),
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flagsHorz);
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sizerPanel->Add(sizerCall, wxSizerFlags().Center().Border());
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panel->SetSizer(sizerPanel);
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wxSizer * const sizerFrame = new wxBoxSizer(wxVERTICAL);
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sizerFrame->Add(panel, wxSizerFlags(2).Expand());
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sizerFrame->Add(log, wxSizerFlags(1).Expand());
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SetSizerAndFit(sizerFrame);
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Show();
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m_flash->PutAllowScriptAccess(L"always");
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wxLogMessage("Script access changed to \"%s\"",
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bstr2wx(m_flash->GetAllowScriptAccess()));
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}
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FlashFrame::~FlashFrame()
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{
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delete wxLog::SetActiveTarget(m_oldLog);
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}
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// ----------------------------------------------------------------------------
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// Flash API wrappers
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// ----------------------------------------------------------------------------
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void FlashFrame::CheckFlashCall(HRESULT hr, const char *func)
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{
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if ( FAILED(hr) )
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{
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wxLogSysError(hr, "Call to IShockwaveFlash::%s() failed", func);
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}
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}
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void FlashFrame::CallFlashFunc(const wxString& argtype,
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const wxString& func,
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const wxString& arg)
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{
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wxString args;
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if ( !argtype.empty() )
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{
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args = wxString::Format("<%s>%s</%s>", argtype, arg, argtype);
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}
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// take care with XML formatting: there should be no spaces in it or the
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// call would fail!
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wxString request = wxString::Format
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(
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"<invoke name=\"%s\" returntype=\"xml\">"
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"<arguments>"
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"%s"
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"</arguments>"
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"</invoke>",
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func,
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args
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);
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wxLogMessage("%s(%s) returned \"%s\"",
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func, args,
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bstr2wx(m_flash->CallFunction(wx2bstr(request))));
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}
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wxString FlashFrame::GetFlashStateString(int state)
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{
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static const char *knownStates[] =
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{
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"Loading", "Uninitialized", "Loaded", "Interactive", "Complete",
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};
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if ( state >= 0 && state < WXSIZEOF(knownStates) )
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return knownStates[state];
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return wxString::Format("unknown state (%d)", state);
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}
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void FlashFrame::SetMovie(const wxString& movie)
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{
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// Flash doesn't like relative file names
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wxFileName fn(movie);
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||
|
fn.MakeAbsolute();
|
||
|
const wxString swf = fn.GetFullPath();
|
||
|
if ( swf == m_swf )
|
||
|
m_flash->PutMovie(L"");
|
||
|
else
|
||
|
m_swf = swf;
|
||
|
|
||
|
m_flash->PutMovie(m_swf.wc_str());
|
||
|
|
||
|
SetStatusText("Loaded \"" + m_swf + '"', 1);
|
||
|
}
|
||
|
|
||
|
void FlashFrame::Play()
|
||
|
{
|
||
|
CheckFlashCall(m_flash->Play(), "Play");
|
||
|
}
|
||
|
|
||
|
void FlashFrame::Stop()
|
||
|
{
|
||
|
CheckFlashCall(m_flash->Stop(), "Stop");
|
||
|
}
|
||
|
|
||
|
// ----------------------------------------------------------------------------
|
||
|
// event handlers
|
||
|
// ----------------------------------------------------------------------------
|
||
|
|
||
|
void FlashFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
wxString swf = wxLoadFileSelector("Flash movie", ".swf", m_swf, this);
|
||
|
if ( swf.empty() )
|
||
|
return;
|
||
|
|
||
|
SetMovie(swf);
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
// true is to force the frame to close
|
||
|
Close(true);
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
wxMessageBox("Flash ActiveX control embedding sample\n"
|
||
|
"\n"
|
||
|
"(c) 2009 Vadim Zeitlin",
|
||
|
"About " + GetTitle(),
|
||
|
wxOK | wxICON_INFORMATION,
|
||
|
this);
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnActiveXEvent(wxActiveXEvent& event)
|
||
|
{
|
||
|
switch ( event.GetDispatchId() )
|
||
|
{
|
||
|
case FLASH_DISPID_ONREADYSTATECHANGE:
|
||
|
{
|
||
|
const int state = event[0].GetInteger();
|
||
|
if ( state != m_state )
|
||
|
{
|
||
|
wxLogMessage("State changed to %s",
|
||
|
GetFlashStateString(state));
|
||
|
|
||
|
if ( state >= 0 && state < FlashState_Max )
|
||
|
m_state = static_cast<FlashState>(state);
|
||
|
else
|
||
|
m_state = FlashState_Unknown;
|
||
|
}
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case FLASH_DISPID_ONPROGRESS:
|
||
|
wxLogMessage("Progress: %d%%", event[0].GetInteger());
|
||
|
break;
|
||
|
|
||
|
case FLASH_DISPID_FSCOMMAND:
|
||
|
wxLogMessage("Flash command %s(%s)",
|
||
|
event[0].GetString(), event[1].GetString());
|
||
|
break;
|
||
|
|
||
|
case FLASH_DISPID_FLASHCALL:
|
||
|
wxLogMessage("Flash request \"%s\"", event[0].GetString());
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
wxLogMessage("Unknown event %ld", event.GetDispatchId());
|
||
|
}
|
||
|
|
||
|
event.Skip();
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnBack(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
CheckFlashCall(m_flash->Back(), "Back");
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnForward(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
CheckFlashCall(m_flash->Forward(), "Forward");
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnInfo(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
const int state = m_flash->GetReadyState();
|
||
|
wxString msg = "State: " + GetFlashStateString(state);
|
||
|
|
||
|
if ( state == FlashState_Complete )
|
||
|
{
|
||
|
msg += wxString::Format(", frame: %ld/%ld",
|
||
|
m_flash->GetFrameNum() + 1,
|
||
|
m_flash->GetTotalFrames());
|
||
|
}
|
||
|
|
||
|
if ( m_flash->IsPlaying() )
|
||
|
msg += ", playing";
|
||
|
|
||
|
wxLogMessage("%s", msg);
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnVarGet(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
m_varvalue->SetValue(bstr2wx(
|
||
|
m_flash->GetVariable(wx2bstr(m_varname->GetValue()))));
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnVarSet(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
m_flash->SetVariable(wx2bstr(m_varname->GetValue()),
|
||
|
wx2bstr(m_varvalue->GetValue()));
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnCall(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
CallFlashFunc("", m_funcname->GetValue());
|
||
|
}
|
||
|
|
||
|
void FlashFrame::OnCallWithArg(wxCommandEvent& WXUNUSED(event))
|
||
|
{
|
||
|
CallFlashFunc("string", m_funcname->GetValue(), m_funcarg->GetValue());
|
||
|
}
|
||
|
|
||
|
|
||
|
|