Fix testing for existence of paths with trailing separators in wxMSW.

[wxWidgets.git] / samples / help / demo.cpp

diff --git a/samples/help/demo.cpp b/samples/help/demo.cpp
index 22561060124c10abc5204e0ad1ee3cbb9da91ff8..d9708b244183e6b2471f7cbc0cb19a6cc9ba997a 100644 (file)
--- a/samples/help/demo.cpp
+++ b/samples/help/demo.cpp
@@ -41,9 +41,11 @@
 // 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 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 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 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).


@@ -69,12 +71,16 @@
 #include "wx/msw/helpbest.h"
 #endif
 
 #include "wx/msw/helpbest.h"
 #endif
 

+#if USE_EXT_HELP
+#include "wx/generic/helpext.h"
+#endif
+

 // ----------------------------------------------------------------------------
 // ressources
 // ----------------------------------------------------------------------------
 // the application icon
 // ----------------------------------------------------------------------------
 // ressources
 // ----------------------------------------------------------------------------
 // the application icon

-#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
-    #include "mondrian.xpm"
+#ifndef wxHAS_IMAGES_IN_RESOURCES
+    #include "../sample.xpm"

 #endif
 
 // ----------------------------------------------------------------------------
 #endif
 
 // ----------------------------------------------------------------------------


@@ -104,7 +110,7 @@ public:
     // ctor(s)
     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 
     // 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; }
 
 #if USE_HTML_HELP
     wxHtmlHelpController& GetAdvancedHtmlHelpController() { return m_advancedHtmlHelp; }


@@ -126,6 +132,9 @@ public:
 #if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     void OnBestHelp(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);
 
     void OnShowContextHelp(wxCommandEvent& event);
     void OnShowDialogContextHelp(wxCommandEvent& event);


@@ -133,10 +142,16 @@ public:
     void ShowHelp(int commandId, wxHelpControllerBase& helpController);
 
 private:
     void ShowHelp(int commandId, wxHelpControllerBase& helpController);
 
 private:

+#if USE_EXT_HELP
+   wxExtHelpController      m_help;
+#else

    wxHelpController         m_help;
    wxHelpController         m_help;

+#endif

 
 #if USE_HTML_HELP
    wxHtmlHelpController     m_advancedHtmlHelp;
 
 #if USE_HTML_HELP
    wxHtmlHelpController     m_advancedHtmlHelp;

+   wxHtmlHelpController     m_embeddedHtmlHelp;
+   wxHtmlHelpWindow*        m_embeddedHelpWindow;

 #endif
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
 #endif
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)


@@ -190,6 +205,7 @@ enum
     HelpDemo_Advanced_Html_Help_Functions,
     HelpDemo_Advanced_Html_Help_Help,
     HelpDemo_Advanced_Html_Help_Search,
     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,
 
     HelpDemo_MS_Html_Help_Index,
     HelpDemo_MS_Html_Help_Classes,


@@ -207,7 +223,7 @@ enum
     HelpDemo_Help_GNOME,
     HelpDemo_Help_Netscape,
     // controls start here (the numbers are, of course, arbitrary)
     HelpDemo_Help_GNOME,
     HelpDemo_Help_Netscape,
     // controls start here (the numbers are, of course, arbitrary)

-    HelpDemo_Text = 1000,
+    HelpDemo_Text = 1000

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -232,6 +248,9 @@ 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)
     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)
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     EVT_MENU(HelpDemo_MS_Html_Help_Index, MyFrame::OnMSHtmlHelp)


@@ -268,6 +287,9 @@ IMPLEMENT_APP(MyApp)
 // `Main program' equivalent: the program execution "starts" here
 bool MyApp::OnInit()
 {
 // `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.
 #if USE_SIMPLE_HELP_PROVIDER
     // Create a simple help provider to make SetHelpText() do something.
     // Note that this must be set before any SetHelpText() calls are made.
 #if USE_SIMPLE_HELP_PROVIDER


@@ -277,21 +299,20 @@ bool MyApp::OnInit()
 #endif
     wxHelpProvider::Set(provider);
 
 #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
 
     // 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
 
     // Create the main application window

-    MyFrame *frame = new MyFrame(_T("HelpDemo wxWidgets App"),
+    MyFrame *frame = new MyFrame(wxT("HelpDemo wxWidgets App"),

                                  wxPoint(50, 50), wxSize(450, 340));
 
 #if !USE_SIMPLE_HELP_PROVIDER
                                  wxPoint(50, 50), wxSize(450, 340));
 
 #if !USE_SIMPLE_HELP_PROVIDER


@@ -300,15 +321,14 @@ bool MyApp::OnInit()
 #else
     provider->SetHelpController(& frame->GetHelpController());
 #endif
 #else
     provider->SetHelpController(& frame->GetHelpController());
 #endif

-#endif
+#endif // !USE_SIMPLE_HELP_PROVIDER

 
     frame->Show(true);
 
     frame->Show(true);

-    SetTopWindow(frame);

 
     // 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
 
     // 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(_T("doc")) )
+    if ( !frame->GetHelpController().Initialize(wxT("doc")) )

     {
         wxLogError(wxT("Cannot initialize the help system, aborting."));
 
     {
         wxLogError(wxT("Cannot initialize the help system, aborting."));
 


@@ -316,7 +336,7 @@ bool MyApp::OnInit()
     }
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     }
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)

-    if( !frame->GetMSHtmlHelpController().Initialize(_T("doc")) )
+    if( !frame->GetMSHtmlHelpController().Initialize(wxT("doc")) )

     {
         wxLogError(wxT("Cannot initialize the MS HTML Help system."));
     }
     {
         wxLogError(wxT("Cannot initialize the MS HTML Help system."));
     }


@@ -324,7 +344,7 @@ bool MyApp::OnInit()
 
 #if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     // you need to call Initialize in order to use wxBestHelpController
 
 #if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     // you need to call Initialize in order to use wxBestHelpController

-    if( !frame->GetBestHelpController().Initialize(_T("doc")) )
+    if( !frame->GetBestHelpController().Initialize(wxT("doc")) )

     {
         wxLogError(wxT("Cannot initialize the best help system, aborting."));
     }
     {
         wxLogError(wxT("Cannot initialize the best help system, aborting."));
     }


@@ -333,7 +353,7 @@ 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 USE_HTML_HELP
     // initialise the advanced HTML help system: this means that the HTML docs are in .htb
     // (zipped) form

-    if ( !frame->GetAdvancedHtmlHelpController().Initialize(_T("doc")) )
+    if ( !frame->GetAdvancedHtmlHelpController().Initialize(wxT("doc")) )

     {
         wxLogError(wxT("Cannot initialize the advanced HTML help system, aborting."));
 
     {
         wxLogError(wxT("Cannot initialize the advanced HTML help system, aborting."));
 


@@ -344,7 +364,7 @@ bool MyApp::OnInit()
 #if 0
     // defined(__WXMSW__) && wxUSE_MS_HTML_HELP
     wxString path(wxGetCwd());
 #if 0
     // defined(__WXMSW__) && wxUSE_MS_HTML_HELP
     wxString path(wxGetCwd());

-    if ( !frame->GetMSHtmlHelpController().Initialize(path + _T("\\doc.chm")) )
+    if ( !frame->GetMSHtmlHelpController().Initialize(path + wxT("\\doc.chm")) )

     {
         wxLogError("Cannot initialize the MS HTML help system, aborting.");
 
     {
         wxLogError("Cannot initialize the MS HTML help system, aborting.");
 


@@ -370,57 +390,61 @@ int MyApp::OnExit()
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
        : wxFrame((wxFrame *)NULL, 300, title, pos, size)
 // 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
 {
     // set the frame icon

-    SetIcon(wxICON(mondrian));
+    SetIcon(wxICON(sample));

 
     // create a menu bar
     wxMenu *menuFile = new wxMenu;
 
 
     // create a menu bar
     wxMenu *menuFile = new wxMenu;
 

-    menuFile->Append(HelpDemo_Help_Index, _T("&Help Index..."));
-    menuFile->Append(HelpDemo_Help_Classes, _T("&Help on Classes..."));
-    menuFile->Append(HelpDemo_Help_Functions, _T("&Help on Functions..."));
-    menuFile->Append(HelpDemo_Help_ContextHelp, _T("&Context Help..."));
-    menuFile->Append(HelpDemo_Help_DialogContextHelp, _T("&Dialog Context Help...\tCtrl-H"));
-    menuFile->Append(HelpDemo_Help_Help, _T("&About Help Demo..."));
-    menuFile->Append(HelpDemo_Help_Search, _T("&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();
 #if USE_HTML_HELP
     menuFile->AppendSeparator();

-    menuFile->Append(HelpDemo_Advanced_Html_Help_Index, _T("Advanced HTML &Help Index..."));
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Classes, _T("Advanced HTML &Help on Classes..."));
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Functions, _T("Advanced HTML &Help on Functions..."));
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Help, _T("Advanced HTML &About Help Demo..."));
-    menuFile->Append(HelpDemo_Advanced_Html_Help_Search, _T("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 && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();
 #endif
 
 #if wxUSE_MS_HTML_HELP && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();

-    menuFile->Append(HelpDemo_MS_Html_Help_Index, _T("MS HTML &Help Index..."));
-    menuFile->Append(HelpDemo_MS_Html_Help_Classes, _T("MS HTML &Help on Classes..."));
-    menuFile->Append(HelpDemo_MS_Html_Help_Functions, _T("MS HTML &Help on Functions..."));
-    menuFile->Append(HelpDemo_MS_Html_Help_Help, _T("MS HTML &About Help Demo..."));
-    menuFile->Append(HelpDemo_MS_Html_Help_Search, _T("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 && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();
 #endif
 
 #if wxUSE_MS_HTML_HELP && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
     menuFile->AppendSeparator();

-    menuFile->Append(HelpDemo_Best_Help_Index, _T("Best &Help Index..."));
+    menuFile->Append(HelpDemo_Best_Help_Index, wxT("Best &Help Index..."));

 #endif
 
 #ifndef __WXMSW__
 #if !wxUSE_HTML
     menuFile->AppendSeparator();
 #endif
 
 #ifndef __WXMSW__
 #if !wxUSE_HTML
     menuFile->AppendSeparator();

-    menuFile->Append(HelpDemo_Help_KDE, _T("Use &KDE"));
-    menuFile->Append(HelpDemo_Help_GNOME, _T("Use &GNOME"));
-    menuFile->Append(HelpDemo_Help_Netscape, _T("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();
 #endif
 #endif
     menuFile->AppendSeparator();

-    menuFile->Append(HelpDemo_Quit, _T("E&xit"));
+    menuFile->Append(HelpDemo_Quit, wxT("E&xit"));

 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar;
 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar;

-    menuBar->Append(menuFile, _T("&File"));
+    menuBar->Append(menuFile, wxT("&File"));

 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);
 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);


@@ -428,9 +452,21 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 #if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
     CreateStatusBar();
 #if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
     CreateStatusBar();

-    SetStatusText(_T("Welcome to wxWidgets!"));
+    SetStatusText(wxT("Welcome to wxWidgets!"));

 #endif // wxUSE_STATUSBAR
 
 #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
     // now create some controls
 
     // a panel first - if there were several controls, it would allow us to


@@ -440,8 +476,9 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     //panel->SetHelpText(wxContextId(300));
 
     // and a static control whose parent is the panel
     //panel->SetHelpText(wxContextId(300));
 
     // and a static control whose parent is the panel

-    wxStaticText* staticText = new wxStaticText(panel, 302, _T("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."));
     staticText->SetHelpText(_("This static text control isn't doing a lot right now."));

+#endif

 }
 
 
 }
 
 


@@ -492,6 +529,13 @@ void MyFrame::OnBestHelp(wxCommandEvent& event)
 }
 #endif
 
 }
 #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,
  but you might want to use a unique keyword to display a topic, instead.
 /*
  Notes: ShowHelp uses section ids for displaying particular topics,
  but you might want to use a unique keyword to display a topic, instead.


@@ -595,8 +639,8 @@ void MyFrame::ShowHelp(int commandId, wxHelpControllerBase& helpController)
        case HelpDemo_MS_Html_Help_Search:
        case HelpDemo_Best_Help_Search:
        {
        case HelpDemo_MS_Html_Help_Search:
        case HelpDemo_Best_Help_Search:
        {

-          wxString key = wxGetTextFromUser(_T("Search for?"),
-                                           _T("Search help for keyword"),
+          wxString key = wxGetTextFromUser(wxT("Search for?"),
+                                           wxT("Search help for keyword"),

                                            wxEmptyString,
                                            this);
           if(! key.IsEmpty())
                                            wxEmptyString,
                                            this);
           if(! key.IsEmpty())


@@ -615,13 +659,13 @@ void MyFrame::ShowHelp(int commandId, wxHelpControllerBase& helpController)
        // These three calls are only used by wxExtHelpController
 
        case HelpDemo_Help_KDE:
        // These three calls are only used by wxExtHelpController
 
        case HelpDemo_Help_KDE:

-          helpController.SetViewer(_T("kdehelp"));
+          helpController.SetViewer(wxT("kdehelp"));

           break;
        case HelpDemo_Help_GNOME:
           break;
        case HelpDemo_Help_GNOME:

-          helpController.SetViewer(_T("gnome-help-browser"));
+          helpController.SetViewer(wxT("gnome-help-browser"));

           break;
        case HelpDemo_Help_Netscape:
           break;
        case HelpDemo_Help_Netscape:

-          helpController.SetViewer(_T("netscape"), wxHELP_NETSCAPE);
+          helpController.SetViewer(wxT("netscape"), wxHELP_NETSCAPE);

           break;
    }
 }
           break;
    }
 }


@@ -635,22 +679,20 @@ BEGIN_EVENT_TABLE(MyModalDialog, wxDialog)
 END_EVENT_TABLE()
 
 MyModalDialog::MyModalDialog(wxWindow *parent)
 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);
     SetExtraStyle(wxDIALOG_EX_CONTEXTHELP);

-#endif

 
 

-    wxDialog::Create(parent, wxID_ANY, wxString(_T("Modal dialog")));

 
     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
     wxBoxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 
 
     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
     wxBoxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 

-    wxButton* btnOK = new wxButton(this, wxID_OK, _T("&OK"));
+    wxButton* btnOK = new wxButton(this, wxID_OK, wxT("&OK"));

     btnOK->SetHelpText(_("The OK button confirms the dialog choices."));
 
     btnOK->SetHelpText(_("The OK button confirms the dialog choices."));
 

-    wxButton* btnCancel = new wxButton(this, wxID_CANCEL, _T("&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);
     btnCancel->SetHelpText(_("The Cancel button cancels the dialog."));
 
     sizerRow->Add(btnOK, 0, wxALIGN_CENTER | wxALL, 5);


@@ -668,10 +710,7 @@ MyModalDialog::MyModalDialog(wxWindow *parent)
     sizerTop->Add(text, 0, wxEXPAND|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
     sizerTop->Add(sizerRow, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 
     sizerTop->Add(text, 0, wxEXPAND|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
     sizerTop->Add(sizerRow, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 

-    SetSizer(sizerTop);
-
-    sizerTop->SetSizeHints(this);
-    sizerTop->Fit(this);
+    SetSizerAndFit(sizerTop);

 
     btnOK->SetFocus();
     btnOK->SetDefault();
 
     btnOK->SetFocus();
     btnOK->SetDefault();