]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/help/demo.cpp
Fixed keyboard navigation in generic tree control.
[wxWidgets.git] / samples / help / demo.cpp
index f88a1650bcf3af3dabd3eec596f9ee2500662806..9ba0461c4b6828e5954fdf357d925c606183bd86 100644 (file)
@@ -25,7 +25,7 @@
 #endif
 
 // for all others, include the necessary headers (this file is usually all you
-// need because it includes almost all "standard" wxWindows headers
+// need because it includes almost all "standard" wxWidgets headers
 #ifndef WX_PRECOMP
 #   include "wx/wx.h"
 #endif
 // define this to 1 to use HTML help even under Windows (by default, Windows
 // version will use WinHelp).
 // Please also see samples/html/helpview.
-
 #define USE_HTML_HELP 1
 
+// define this to 1 to use external help controller (not used by default)
+#define USE_EXT_HELP 0
+
+// Define this to 0 to use the help controller as the help
+// provider, or to 1 to use the 'simple help provider'
+// (the one implemented with wxTipWindow).
+#define USE_SIMPLE_HELP_PROVIDER 0
+
 #if !wxUSE_HTML
 #undef USE_HTML_HELP
 #define USE_HTML_HELP 0
 #include "wx/html/helpctrl.h"
 #endif
 
-#if wxUSE_MS_HTML_HELP
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
 #include "wx/msw/helpchm.h"
 #endif
 
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
 #include "wx/msw/helpbest.h"
 #endif
 
+#if USE_EXT_HELP
+#include "wx/generic/helpext.h"
+#endif
+
 // ----------------------------------------------------------------------------
 // ressources
 // ----------------------------------------------------------------------------
 // the application icon
-#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
-    #include "mondrian.xpm"
+#if !defined(__WXMSW__) && !defined(__WXPM__)
+    #include "../sample.xpm"
 #endif
 
 // ----------------------------------------------------------------------------
@@ -99,15 +110,15 @@ public:
     // ctor(s)
     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 
-    wxHelpController& GetHelpController() { return m_help; }
+    wxHelpControllerBase& GetHelpController() { return m_help; }
 
 #if USE_HTML_HELP
     wxHtmlHelpController& GetAdvancedHtmlHelpController() { return m_advancedHtmlHelp; }
 #endif
-#if wxUSE_MS_HTML_HELP
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     wxCHMHelpController& GetMSHtmlHelpController() { return m_msHtmlHelp; }
 #endif
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     wxBestHelpController& GetBestHelpController() { return m_bestHelp; }
 #endif
 
@@ -115,8 +126,15 @@ public:
     void OnQuit(wxCommandEvent& event);
     void OnHelp(wxCommandEvent& event);
     void OnAdvancedHtmlHelp(wxCommandEvent& event);
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     void OnMSHtmlHelp(wxCommandEvent& event);
+#endif
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     void OnBestHelp(wxCommandEvent& event);
+#endif
+#if USE_HTML_HELP
+    void OnModalHtmlHelp(wxCommandEvent& event);
+#endif
 
     void OnShowContextHelp(wxCommandEvent& event);
     void OnShowDialogContextHelp(wxCommandEvent& event);
@@ -124,21 +142,27 @@ public:
     void ShowHelp(int commandId, wxHelpControllerBase& helpController);
 
 private:
+#if USE_EXT_HELP
+   wxExtHelpController      m_help;
+#else
    wxHelpController         m_help;
+#endif
 
 #if USE_HTML_HELP
    wxHtmlHelpController     m_advancedHtmlHelp;
+   wxHtmlHelpController     m_embeddedHtmlHelp;
+   wxHtmlHelpWindow*        m_embeddedHelpWindow;
 #endif
 
-#if wxUSE_MS_HTML_HELP
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     wxCHMHelpController     m_msHtmlHelp;
 #endif
 
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     wxBestHelpController    m_bestHelp;
 #endif
 
-    // any class wishing to process wxWindows events must use this macro
+    // any class wishing to process wxWidgets events must use this macro
    DECLARE_EVENT_TABLE()
 };
 
@@ -181,6 +205,7 @@ enum
     HelpDemo_Advanced_Html_Help_Functions,
     HelpDemo_Advanced_Html_Help_Help,
     HelpDemo_Advanced_Html_Help_Search,
+    HelpDemo_Advanced_Html_Help_Modal,
 
     HelpDemo_MS_Html_Help_Index,
     HelpDemo_MS_Html_Help_Classes,
@@ -198,14 +223,14 @@ enum
     HelpDemo_Help_GNOME,
     HelpDemo_Help_Netscape,
     // controls start here (the numbers are, of course, arbitrary)
-    HelpDemo_Text = 1000,
+    HelpDemo_Text = 1000
 };
 
 // ----------------------------------------------------------------------------
-// event tables and other macros for wxWindows
+// event tables and other macros for wxWidgets
 // ----------------------------------------------------------------------------
 
-// the event tables connect the wxWindows events with the functions (event
+// the event tables connect the wxWidgets events with the functions (event
 // handlers) which process them. It can be also done at run-time, but for the
 // simple menu events like this the static method is much simpler.
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
@@ -223,21 +248,28 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(HelpDemo_Advanced_Html_Help_Functions, MyFrame::OnAdvancedHtmlHelp)
     EVT_MENU(HelpDemo_Advanced_Html_Help_Help, MyFrame::OnAdvancedHtmlHelp)
     EVT_MENU(HelpDemo_Advanced_Html_Help_Search, MyFrame::OnAdvancedHtmlHelp)
+#if USE_HTML_HELP
+    EVT_MENU(HelpDemo_Advanced_Html_Help_Modal, MyFrame::OnModalHtmlHelp)
+#endif
 
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     EVT_MENU(HelpDemo_MS_Html_Help_Index, MyFrame::OnMSHtmlHelp)
     EVT_MENU(HelpDemo_MS_Html_Help_Classes, MyFrame::OnMSHtmlHelp)
     EVT_MENU(HelpDemo_MS_Html_Help_Functions, MyFrame::OnMSHtmlHelp)
     EVT_MENU(HelpDemo_MS_Html_Help_Help, MyFrame::OnMSHtmlHelp)
     EVT_MENU(HelpDemo_MS_Html_Help_Search, MyFrame::OnMSHtmlHelp)
+#endif
 
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     EVT_MENU(HelpDemo_Best_Help_Index, MyFrame::OnBestHelp)
+#endif
 
     EVT_MENU(HelpDemo_Help_KDE, MyFrame::OnHelp)
     EVT_MENU(HelpDemo_Help_GNOME, MyFrame::OnHelp)
     EVT_MENU(HelpDemo_Help_Netscape, MyFrame::OnHelp)
 END_EVENT_TABLE()
 
-// Create a new application object: this macro will allow wxWindows to create
+// Create a new application object: this macro will allow wxWidgets to create
 // the application object during program execution (it's better than using a
 // static object for many reasons) and also declares the accessor function
 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
@@ -255,58 +287,64 @@ IMPLEMENT_APP(MyApp)
 // `Main program' equivalent: the program execution "starts" here
 bool MyApp::OnInit()
 {
+    if ( !wxApp::OnInit() )
+        return false;
+
     // Create a simple help provider to make SetHelpText() do something.
     // Note that this must be set before any SetHelpText() calls are made.
-    //wxHelpProvider::Set(new wxSimpleHelpProvider);
+#if USE_SIMPLE_HELP_PROVIDER
+    wxSimpleHelpProvider* provider = new wxSimpleHelpProvider;
+#else
     wxHelpControllerHelpProvider* provider = new wxHelpControllerHelpProvider;
+#endif
     wxHelpProvider::Set(provider);
 
-#if wxUSE_HTML
-#if wxUSE_GIF
-    // Required for images in the online documentation
-    wxImage::AddHandler(new wxGIFHandler);
+#if USE_HTML_HELP
+    #if wxUSE_GIF
+        // Required for images in the online documentation
+        wxImage::AddHandler(new wxGIFHandler);
+    #endif // wxUSE_GIF
 
     // Required for advanced HTML help
-#if wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
-      wxFileSystem::AddHandler(new wxZipFSHandler);
-#endif
-
-#endif
-#endif
+    #if wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
+        wxFileSystem::AddHandler(new wxZipFSHandler);
+    #endif
+#endif // wxUSE_HTML
 
     // Create the main application window
-    MyFrame *frame = new MyFrame("HelpDemo wxWindows App",
+    MyFrame *frame = new MyFrame(wxT("HelpDemo wxWidgets App"),
                                  wxPoint(50, 50), wxSize(450, 340));
 
-#if wxUSE_MS_HTML_HELP
+#if !USE_SIMPLE_HELP_PROVIDER
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     provider->SetHelpController(& frame->GetMSHtmlHelpController());
 #else
     provider->SetHelpController(& frame->GetHelpController());
 #endif
+#endif // !USE_SIMPLE_HELP_PROVIDER
 
-    frame->Show(TRUE);
-    SetTopWindow(frame);
+    frame->Show(true);
 
     // initialise the help system: this means that we'll use doc.hlp file under
     // Windows and that the HTML docs are in the subdirectory doc for platforms
     // using HTML help
-    if ( !frame->GetHelpController().Initialize("doc") )
+    if ( !frame->GetHelpController().Initialize(wxT("doc")) )
     {
         wxLogError(wxT("Cannot initialize the help system, aborting."));
 
-        return FALSE;
+        return false;
     }
 
-#if wxUSE_MS_HTML_HELP
-    if( !frame->GetMSHtmlHelpController().Initialize("doc") )
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
+    if( !frame->GetMSHtmlHelpController().Initialize(wxT("doc")) )
     {
         wxLogError(wxT("Cannot initialize the MS HTML Help system."));
     }
 #endif
 
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     // you need to call Initialize in order to use wxBestHelpController
-    if( !frame->GetBestHelpController().Initialize("doc") )
+    if( !frame->GetBestHelpController().Initialize(wxT("doc")) )
     {
         wxLogError(wxT("Cannot initialize the best help system, aborting."));
     }
@@ -315,26 +353,26 @@ bool MyApp::OnInit()
 #if USE_HTML_HELP
     // initialise the advanced HTML help system: this means that the HTML docs are in .htb
     // (zipped) form
-    if ( !frame->GetAdvancedHtmlHelpController().Initialize("doc") )
+    if ( !frame->GetAdvancedHtmlHelpController().Initialize(wxT("doc")) )
     {
         wxLogError(wxT("Cannot initialize the advanced HTML help system, aborting."));
 
-        return FALSE;
+        return false;
     }
 #endif
 
 #if 0
     // defined(__WXMSW__) && wxUSE_MS_HTML_HELP
     wxString path(wxGetCwd());
-    if ( !frame->GetMSHtmlHelpController().Initialize(path + "\\doc.chm") )
+    if ( !frame->GetMSHtmlHelpController().Initialize(path + wxT("\\doc.chm")) )
     {
         wxLogError("Cannot initialize the MS HTML help system, aborting.");
 
-        return FALSE;
+        return false;
     }
 #endif
 
-    return TRUE;
+    return true;
 }
 
 int MyApp::OnExit()
@@ -352,76 +390,95 @@ int MyApp::OnExit()
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
        : wxFrame((wxFrame *)NULL, 300, title, pos, size)
+#if USE_HTML_HELP
+    , m_embeddedHtmlHelp(wxHF_EMBEDDED|wxHF_DEFAULT_STYLE)
+#endif
 {
     // set the frame icon
-    SetIcon(wxICON(mondrian));
+    SetIcon(wxICON(sample));
 
     // create a menu bar
     wxMenu *menuFile = new wxMenu;
 
-    menuFile->Append(HelpDemo_Help_Index, "&Help Index...");
-    menuFile->Append(HelpDemo_Help_Classes, "&Help on Classes...");
-    menuFile->Append(HelpDemo_Help_Functions, "&Help on Functions...");
-    menuFile->Append(HelpDemo_Help_ContextHelp, "&Context Help...");
-    menuFile->Append(HelpDemo_Help_DialogContextHelp, "&Dialog Context Help...\tCtrl-H");
-    menuFile->Append(HelpDemo_Help_Help, "&About Help Demo...");
-    menuFile->Append(HelpDemo_Help_Search, "&Search help...");
+    menuFile->Append(HelpDemo_Help_Index, wxT("&Help Index..."));
+    menuFile->Append(HelpDemo_Help_Classes, wxT("&Help on Classes..."));
+    menuFile->Append(HelpDemo_Help_Functions, wxT("&Help on Functions..."));
+    menuFile->Append(HelpDemo_Help_ContextHelp, wxT("&Context Help..."));
+    menuFile->Append(HelpDemo_Help_DialogContextHelp, wxT("&Dialog Context Help...\tCtrl-H"));
+    menuFile->Append(HelpDemo_Help_Help, wxT("&About Help Demo..."));
+    menuFile->Append(HelpDemo_Help_Search, wxT("&Search help..."));
 #if USE_HTML_HELP
     menuFile->AppendSeparator();
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Index, "Advanced HTML &Help Index...");
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Classes, "Advanced HTML &Help on Classes...");
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Functions, "Advanced HTML &Help on Functions...");
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Help, "Advanced HTML &About Help Demo...");
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Search, "Advanced HTML &Search help...");
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Index, wxT("Advanced HTML &Help Index..."));
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Classes, wxT("Advanced HTML &Help on Classes..."));
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Functions, wxT("Advanced HTML &Help on Functions..."));
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Help, wxT("Advanced HTML &About Help Demo..."));
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Search, wxT("Advanced HTML &Search help..."));
+    menuFile->Append(HelpDemo_Advanced_Html_Help_Modal, wxT("Advanced HTML Help &Modal Dialog..."));
 #endif
 
-#if wxUSE_MS_HTML_HELP
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();
-    menuFile->Append(HelpDemo_MS_Html_Help_Index, "MS HTML &Help Index...");
-    menuFile->Append(HelpDemo_MS_Html_Help_Classes, "MS HTML &Help on Classes...");
-    menuFile->Append(HelpDemo_MS_Html_Help_Functions, "MS HTML &Help on Functions...");
-    menuFile->Append(HelpDemo_MS_Html_Help_Help, "MS HTML &About Help Demo...");
-    menuFile->Append(HelpDemo_MS_Html_Help_Search, "MS HTML &Search help...");
+    menuFile->Append(HelpDemo_MS_Html_Help_Index, wxT("MS HTML &Help Index..."));
+    menuFile->Append(HelpDemo_MS_Html_Help_Classes, wxT("MS HTML &Help on Classes..."));
+    menuFile->Append(HelpDemo_MS_Html_Help_Functions, wxT("MS HTML &Help on Functions..."));
+    menuFile->Append(HelpDemo_MS_Html_Help_Help, wxT("MS HTML &About Help Demo..."));
+    menuFile->Append(HelpDemo_MS_Html_Help_Search, wxT("MS HTML &Search help..."));
 #endif
 
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();
-    menuFile->Append(HelpDemo_Best_Help_Index, "Best &Help Index...");
+    menuFile->Append(HelpDemo_Best_Help_Index, wxT("Best &Help Index..."));
 #endif
 
 #ifndef __WXMSW__
 #if !wxUSE_HTML
     menuFile->AppendSeparator();
-    menuFile->Append(HelpDemo_Help_KDE, "Use &KDE");
-    menuFile->Append(HelpDemo_Help_GNOME, "Use &GNOME");
-    menuFile->Append(HelpDemo_Help_Netscape, "Use &Netscape");
+    menuFile->Append(HelpDemo_Help_KDE, wxT("Use &KDE"));
+    menuFile->Append(HelpDemo_Help_GNOME, wxT("Use &GNOME"));
+    menuFile->Append(HelpDemo_Help_Netscape, wxT("Use &Netscape"));
 #endif
 #endif
     menuFile->AppendSeparator();
-    menuFile->Append(HelpDemo_Quit, "E&xit");
+    menuFile->Append(HelpDemo_Quit, wxT("E&xit"));
 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar;
-    menuBar->Append(menuFile, "&File");
+    menuBar->Append(menuFile, wxT("&File"));
 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);
 
+#if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
     CreateStatusBar();
-    SetStatusText("Welcome to wxWindows!");
+    SetStatusText(wxT("Welcome to wxWidgets!"));
+#endif // wxUSE_STATUSBAR
 
+#if USE_HTML_HELP
+    // Create embedded HTML Help window
+    m_embeddedHelpWindow = new wxHtmlHelpWindow;
+    // m_embeddedHtmlHelp.UseConfig(config, rootPath); // Can set your own config object here
+    m_embeddedHtmlHelp.SetHelpWindow(m_embeddedHelpWindow);
+
+    m_embeddedHelpWindow->Create(this,
+        wxID_ANY, wxDefaultPosition, GetClientSize(), wxTAB_TRAVERSAL|wxNO_BORDER, wxHF_DEFAULT_STYLE);
+
+    m_embeddedHtmlHelp.AddBook(wxFileName(wxT("doc.zip")));
+    m_embeddedHtmlHelp.Display(wxT("Introduction"));
+#else
     // now create some controls
 
     // a panel first - if there were several controls, it would allow us to
     // navigate between them from the keyboard
     wxPanel *panel = new wxPanel(this, 301, wxPoint(0, 0), wxSize(400, 200));
-    //panel->SetHelpText(_("This panel just holds a static text control."));
-    panel->SetHelpText(wxContextId(300));
+    panel->SetHelpText(_("This panel just holds a static text control."));
+    //panel->SetHelpText(wxContextId(300));
 
     // and a static control whose parent is the panel
-    wxStaticText* staticText = new wxStaticText(panel, 302, "Hello, world!", wxPoint(10, 10));
+    wxStaticText* staticText = new wxStaticText(panel, 302, wxT("Hello, world!"), wxPoint(10, 10));
     staticText->SetHelpText(_("This static text control isn't doing a lot right now."));
+#endif
 }
 
 
@@ -429,8 +486,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
-    // TRUE is to force the frame to close
-    Close(TRUE);
+    // true is to force the frame to close
+    Close(true);
 }
 
 void MyFrame::OnHelp(wxCommandEvent& event)
@@ -438,14 +495,14 @@ void MyFrame::OnHelp(wxCommandEvent& event)
     ShowHelp(event.GetId(), m_help);
 }
 
-void MyFrame::OnShowContextHelp(wxCommandEvent& event)
+void MyFrame::OnShowContextHelp(wxCommandEvent& WXUNUSED(event))
 {
     // This starts context help mode, then the user
     // clicks on a window to send a help message
     wxContextHelp contextHelp(this);
 }
 
-void MyFrame::OnShowDialogContextHelp(wxCommandEvent& event)
+void MyFrame::OnShowDialogContextHelp(wxCommandEvent& WXUNUSED(event))
 {
     MyModalDialog dialog(this);
     dialog.ShowModal();
@@ -458,19 +515,26 @@ void MyFrame::OnAdvancedHtmlHelp(wxCommandEvent& event)
 #endif
 }
 
+#if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
 void MyFrame::OnMSHtmlHelp(wxCommandEvent& event)
 {
-#if wxUSE_MS_HTML_HELP
     ShowHelp(event.GetId(), m_msHtmlHelp);
-#endif
 }
+#endif
 
+#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
 void MyFrame::OnBestHelp(wxCommandEvent& event)
 {
-#if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP
     ShowHelp(event.GetId(), m_bestHelp);
+}
 #endif
+
+#if USE_HTML_HELP
+void MyFrame::OnModalHtmlHelp(wxCommandEvent& WXUNUSED(event))
+{
+    wxHtmlModalHelp modalHelp(this, wxT("doc.zip"), wxT("Introduction"));
 }
+#endif
 
 /*
  Notes: ShowHelp uses section ids for displaying particular topics,
@@ -514,9 +578,9 @@ void MyFrame::OnBestHelp(wxCommandEvent& event)
 
    A wxhelp.map file is used, for example:
 
-   0 wx.htm             ; wxWindows: Help index; additional keywords like overview
-   1 wx204.htm          ; wxWindows Function Reference
-   2 wx34.htm           ; wxWindows Class Reference
+   0 wx.htm             ; wxWidgets: Help index; additional keywords like overview
+   1 wx204.htm          ; wxWidgets Function Reference
+   2 wx34.htm           ; wxWidgets Class Reference
 
    Note that Tex2RTF doesn't currently generate the MAP section automatically.
 
@@ -575,9 +639,9 @@ void MyFrame::ShowHelp(int commandId, wxHelpControllerBase& helpController)
        case HelpDemo_MS_Html_Help_Search:
        case HelpDemo_Best_Help_Search:
        {
-          wxString key = wxGetTextFromUser("Search for?",
-                                           "Search help for keyword",
-                                           "",
+          wxString key = wxGetTextFromUser(wxT("Search for?"),
+                                           wxT("Search help for keyword"),
+                                           wxEmptyString,
                                            this);
           if(! key.IsEmpty())
              helpController.KeywordSearch(key);
@@ -595,13 +659,13 @@ void MyFrame::ShowHelp(int commandId, wxHelpControllerBase& helpController)
        // These three calls are only used by wxExtHelpController
 
        case HelpDemo_Help_KDE:
-          helpController.SetViewer("kdehelp");
+          helpController.SetViewer(wxT("kdehelp"));
           break;
        case HelpDemo_Help_GNOME:
-          helpController.SetViewer("gnome-help-browser");
+          helpController.SetViewer(wxT("gnome-help-browser"));
           break;
        case HelpDemo_Help_Netscape:
-          helpController.SetViewer("netscape", wxHELP_NETSCAPE);
+          helpController.SetViewer(wxT("netscape"), wxHELP_NETSCAPE);
           break;
    }
 }
@@ -615,22 +679,20 @@ BEGIN_EVENT_TABLE(MyModalDialog, wxDialog)
 END_EVENT_TABLE()
 
 MyModalDialog::MyModalDialog(wxWindow *parent)
-             : wxDialog()
+             : wxDialog(parent, wxID_ANY, wxString(wxT("Modal dialog")))
 {
-    // Add the context-sensitive help button on the caption for MSW
-#ifdef __WXMSW__
+    // Add the context-sensitive help button on the caption for the platforms
+    // which support it (currently MSW only)
     SetExtraStyle(wxDIALOG_EX_CONTEXTHELP);
-#endif
 
-    wxDialog::Create(parent, -1, wxString("Modal dialog"));
 
     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
     wxBoxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 
-    wxButton* btnOK = new wxButton(this, wxID_OK, "&OK");
+    wxButton* btnOK = new wxButton(this, wxID_OK, wxT("&OK"));
     btnOK->SetHelpText(_("The OK button confirms the dialog choices."));
 
-    wxButton* btnCancel = new wxButton(this, wxID_CANCEL, "&Cancel");
+    wxButton* btnCancel = new wxButton(this, wxID_CANCEL, wxT("&Cancel"));
     btnCancel->SetHelpText(_("The Cancel button cancels the dialog."));
 
     sizerRow->Add(btnOK, 0, wxALIGN_CENTER | wxALL, 5);
@@ -641,18 +703,14 @@ MyModalDialog::MyModalDialog(wxWindow *parent)
     sizerRow->Add(new wxContextHelpButton(this), 0, wxALIGN_CENTER | wxALL, 5);
 #endif
 
-    wxTextCtrl *text = new wxTextCtrl(this, -1, wxT("A demo text control"),
+    wxTextCtrl *text = new wxTextCtrl(this, wxID_ANY, wxT("A demo text control"),
                                       wxDefaultPosition, wxSize(300, 100),
                                       wxTE_MULTILINE);
     text->SetHelpText(_("Type text here if you have got nothing more interesting to do"));
     sizerTop->Add(text, 0, wxEXPAND|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
     sizerTop->Add(sizerRow, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 
-    SetAutoLayout(TRUE);
-    SetSizer(sizerTop);
-
-    sizerTop->SetSizeHints(this);
-    sizerTop->Fit(this);
+    SetSizerAndFit(sizerTop);
 
     btnOK->SetFocus();
     btnOK->SetDefault();