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'Set to Unspecified' -> 'Set Value to Unspecified'
[wxWidgets.git] / samples / typetest / typetest.cpp
diff --git a/samples/typetest/typetest.cpp b/samples/typetest/typetest.cpp
index 26cf4051df4901806d6a5b7086b7dbf58ae21003..b71edda8e5ac56785da70d3f0bb3737996e3dd65 100644 (file)
--- a/samples/typetest/typetest.cpp
+++ b/samples/typetest/typetest.cpp
@@ -1,18 +1,14 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        typetest.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        typetest.cpp
-// Purpose:     Types wxWindows sample
+// Purpose:     Types wxWidgets sample
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:       wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "typetest.h"
-#endif
-
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
@@ -24,17 +20,19 @@
 #include "wx/wx.h"
 #endif
 
 #include "wx/wx.h"
 #endif
 
-#include "wx/time.h"
-#include "wx/date.h"
 #include "wx/variant.h"
 #include "wx/mimetype.h"
 
 #include "typetest.h"
 
 #include "wx/variant.h"
 #include "wx/mimetype.h"
 
 #include "typetest.h"
 
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
+#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
 #include "mondrian.xpm"
 #endif
 
 #include "mondrian.xpm"
 #endif
 
+#ifdef new
+#undef new
+#endif
+
 #include "wx/ioswrap.h"
 
 #if wxUSE_IOSTREAMH
 #include "wx/ioswrap.h"
 
 #if wxUSE_IOSTREAMH
@@ -54,25 +52,31 @@ IMPLEMENT_APP    (MyApp)
 IMPLEMENT_DYNAMIC_CLASS    (MyApp, wxApp)
 
 BEGIN_EVENT_TABLE(MyApp, wxApp)
 IMPLEMENT_DYNAMIC_CLASS    (MyApp, wxApp)
 
 BEGIN_EVENT_TABLE(MyApp, wxApp)
-    EVT_MENU(TYPES_DATE,      MyApp::DoDateDemo)
-    EVT_MENU(TYPES_TIME,      MyApp::DoTimeDemo)
     EVT_MENU(TYPES_VARIANT,   MyApp::DoVariantDemo)
     EVT_MENU(TYPES_BYTEORDER, MyApp::DoByteOrderDemo)
 #if wxUSE_UNICODE
     EVT_MENU(TYPES_UNICODE,   MyApp::DoUnicodeDemo)
     EVT_MENU(TYPES_VARIANT,   MyApp::DoVariantDemo)
     EVT_MENU(TYPES_BYTEORDER, MyApp::DoByteOrderDemo)
 #if wxUSE_UNICODE
     EVT_MENU(TYPES_UNICODE,   MyApp::DoUnicodeDemo)
-#endif
+#endif // wxUSE_UNICODE
     EVT_MENU(TYPES_STREAM, MyApp::DoStreamDemo)
     EVT_MENU(TYPES_STREAM2, MyApp::DoStreamDemo2)
     EVT_MENU(TYPES_STREAM3, MyApp::DoStreamDemo3)
     EVT_MENU(TYPES_STREAM4, MyApp::DoStreamDemo4)
     EVT_MENU(TYPES_STREAM5, MyApp::DoStreamDemo5)
     EVT_MENU(TYPES_STREAM, MyApp::DoStreamDemo)
     EVT_MENU(TYPES_STREAM2, MyApp::DoStreamDemo2)
     EVT_MENU(TYPES_STREAM3, MyApp::DoStreamDemo3)
     EVT_MENU(TYPES_STREAM4, MyApp::DoStreamDemo4)
     EVT_MENU(TYPES_STREAM5, MyApp::DoStreamDemo5)
+    EVT_MENU(TYPES_STREAM6, MyApp::DoStreamDemo6)
+    EVT_MENU(TYPES_STREAM7, MyApp::DoStreamDemo7)
     EVT_MENU(TYPES_MIME, MyApp::DoMIMEDemo)
 END_EVENT_TABLE()
 
     EVT_MENU(TYPES_MIME, MyApp::DoMIMEDemo)
 END_EVENT_TABLE()
 
+wxString file_name = wxT("test_wx.dat");
+wxString file_name2 = wxString(wxT("test_wx2.dat"));
+
 bool MyApp::OnInit()
 {
 bool MyApp::OnInit()
 {
+    if ( !wxApp::OnInit() )
+        return false;
+
     // Create the main frame window
     // Create the main frame window
-    MyFrame *frame = new MyFrame((wxFrame *) NULL, "wxWindows Types Demo",
+    MyFrame *frame = new MyFrame((wxFrame *) NULL, wxT("wxWidgets Types Demo"),
                                  wxPoint(50, 50), wxSize(450, 340));
 
     // Give it an icon
                                  wxPoint(50, 50), wxSize(450, 340));
 
     // Give it an icon
@@ -81,39 +85,40 @@ bool MyApp::OnInit()
     // Make a menubar
     wxMenu *file_menu = new wxMenu;
 
     // Make a menubar
     wxMenu *file_menu = new wxMenu;
 
-    file_menu->Append(TYPES_ABOUT, "&About");
+    file_menu->Append(TYPES_ABOUT, wxT("&About"));
     file_menu->AppendSeparator();
     file_menu->AppendSeparator();
-    file_menu->Append(TYPES_QUIT, "E&xit\tAlt-X");
+    file_menu->Append(TYPES_QUIT, wxT("E&xit\tAlt-X"));
 
     wxMenu *test_menu = new wxMenu;
 
     wxMenu *test_menu = new wxMenu;
-    test_menu->Append(TYPES_DATE, "&Date test");
-    test_menu->Append(TYPES_TIME, "&Time test");
-    test_menu->Append(TYPES_VARIANT, "&Variant test");
-    test_menu->Append(TYPES_BYTEORDER, "&Byteorder test");
+    test_menu->Append(TYPES_VARIANT, wxT("&Variant test"));
+    test_menu->Append(TYPES_BYTEORDER, wxT("&Byteorder test"));
 #if wxUSE_UNICODE
 #if wxUSE_UNICODE
-    test_menu->Append(TYPES_UNICODE, "&Unicode test");
-#endif
-    test_menu->Append(TYPES_STREAM, "&Stream test");
-    test_menu->Append(TYPES_STREAM2, "&Stream seek test");
-    test_menu->Append(TYPES_STREAM3, "&Stream error test");
-    test_menu->Append(TYPES_STREAM4, "&Stream buffer test");
-    test_menu->Append(TYPES_STREAM5, "&Stream peek test");
+    test_menu->Append(TYPES_UNICODE, wxT("&Unicode test"));
+#endif // wxUSE_UNICODE
+    test_menu->Append(TYPES_STREAM, wxT("&Stream test"));
+    test_menu->Append(TYPES_STREAM2, wxT("&Stream seek test"));
+    test_menu->Append(TYPES_STREAM3, wxT("&Stream error test"));
+    test_menu->Append(TYPES_STREAM4, wxT("&Stream buffer test"));
+    test_menu->Append(TYPES_STREAM5, wxT("&Stream peek test"));
+    test_menu->Append(TYPES_STREAM6, wxT("&Stream ungetch test"));
+    test_menu->Append(TYPES_STREAM7, wxT("&Stream ungetch test for a buffered stream"));
     test_menu->AppendSeparator();
     test_menu->AppendSeparator();
-    test_menu->Append(TYPES_MIME, "&MIME database test");
+    test_menu->Append(TYPES_MIME, wxT("&MIME database test"));
 
     wxMenuBar *menu_bar = new wxMenuBar;
 
     wxMenuBar *menu_bar = new wxMenuBar;
-    menu_bar->Append(file_menu, "&File");
-    menu_bar->Append(test_menu, "&Tests");
+    menu_bar->Append(file_menu, wxT("&File"));
+    menu_bar->Append(test_menu, wxT("&Tests"));
     frame->SetMenuBar(menu_bar);
 
     frame->SetMenuBar(menu_bar);
 
-    m_textCtrl = new wxTextCtrl(frame, -1, "", wxPoint(0, 0), wxDefaultSize, wxTE_MULTILINE);
+    m_textCtrl = new wxTextCtrl(frame, wxID_ANY, wxEmptyString,
+        wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE);
 
     // Show the frame
 
     // Show the frame
-    frame->Show(TRUE);
+    frame->Show(true);
 
     SetTopWindow(frame);
 
 
     SetTopWindow(frame);
 
-    return TRUE;
+    return true;
 }
 
 void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))
 }
 
 void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))
@@ -121,152 +126,152 @@ void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << _T("\nTest fstream vs. wxFileStream:\n\n");
+    textCtrl << wxT("\nTest fstream vs. wxFileStream:\n\n");
 
 
-    textCtrl.WriteText( "Writing to ofstream and wxFileOutputStream:\n" );
+    textCtrl.WriteText( wxT("Writing to ofstream and wxFileOutputStream:\n") );
 
 
-    ofstream std_file_output( "test_std.dat" );
-    wxFileOutputStream file_output( wxString("test_wx.dat") );
+    wxSTD ofstream std_file_output( "test_std.dat" );
+    wxFileOutputStream file_output( file_name );
     wxBufferedOutputStream buf_output( file_output );
     wxTextOutputStream text_output( buf_output );
 
     wxString tmp;
     signed int si = 0xFFFFFFFF;
     wxBufferedOutputStream buf_output( file_output );
     wxTextOutputStream text_output( buf_output );
 
     wxString tmp;
     signed int si = 0xFFFFFFFF;
-    tmp.Printf( _T("Signed int: %d\n"), si );
+    tmp.Printf( wxT("Signed int: %d\n"), si );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-    text_output << si << "\n";
+    text_output << si << wxT("\n");
     std_file_output << si << "\n";
 
     unsigned int ui = 0xFFFFFFFF;
     std_file_output << si << "\n";
 
     unsigned int ui = 0xFFFFFFFF;
-    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    tmp.Printf( wxT("Unsigned int: %u\n"), ui );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-    text_output << ui << "\n";
+    text_output << ui << wxT("\n");
     std_file_output << ui << "\n";
 
     double d = 2.01234567890123456789;
     std_file_output << ui << "\n";
 
     double d = 2.01234567890123456789;
-    tmp.Printf( _T("Double: %f\n"), d );
+    tmp.Printf( wxT("Double: %f\n"), d );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-    text_output << d << "\n";
+    text_output << d << wxT("\n");
     std_file_output << d << "\n";
 
     float f = (float)0.00001;
     std_file_output << d << "\n";
 
     float f = (float)0.00001;
-    tmp.Printf( _T("Float: %f\n"), f );
+    tmp.Printf( wxT("Float: %f\n"), f );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-    text_output << f << "\n";
+    text_output << f << wxT("\n");
     std_file_output << f << "\n";
 
     std_file_output << f << "\n";
 
-    wxString str( _T("Hello!") );
-    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    wxString str( wxT("Hello!") );
+    tmp.Printf( wxT("String: %s\n"), str.c_str() );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-    text_output << str << "\n";
-    std_file_output << str.c_str() << "\n";
-    
-    textCtrl.WriteText( "\nReading from ifstream:\n" );
+    text_output << str << wxT("\n");
+    std_file_output << str.ToAscii() << "\n";
+
+    std_file_output.close();
 
 
-    ifstream std_file_input( "test_std.dat" );
+    textCtrl.WriteText( wxT("\nReading from ifstream:\n") );
+
+    wxSTD ifstream std_file_input( "test_std.dat" );
 
     std_file_input >> si;
 
     std_file_input >> si;
-    tmp.Printf( _T("Signed int: %d\n"), si );
+    tmp.Printf( wxT("Signed int: %d\n"), si );
     textCtrl.WriteText( tmp );
 
     std_file_input >> ui;
     textCtrl.WriteText( tmp );
 
     std_file_input >> ui;
-    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    tmp.Printf( wxT("Unsigned int: %u\n"), ui );
     textCtrl.WriteText( tmp );
 
     std_file_input >> d;
     textCtrl.WriteText( tmp );
 
     std_file_input >> d;
-    tmp.Printf( _T("Double: %f\n"), d );
+    tmp.Printf( wxT("Double: %f\n"), d );
     textCtrl.WriteText( tmp );
 
     std_file_input >> f;
     textCtrl.WriteText( tmp );
 
     std_file_input >> f;
-    tmp.Printf( _T("Float: %f\n"), f );
+    tmp.Printf( wxT("Float: %f\n"), f );
     textCtrl.WriteText( tmp );
 
     textCtrl.WriteText( tmp );
 
-    // Why doesn't this work?
-#if 0
     char std_buf[200];
     std_file_input >> std_buf;
     char std_buf[200];
     std_file_input >> std_buf;
-    tmp.Printf( _T("String: %s\n"), std_buf );
+    str = wxString::FromAscii(std_buf);
+    tmp.Printf( wxT("String: %s\n"), str.c_str() );
     textCtrl.WriteText( tmp );
     textCtrl.WriteText( tmp );
-#endif
 
 
-    textCtrl.WriteText( "\nReading from wxFileInputStream:\n" );
+    textCtrl.WriteText( wxT("\nReading from wxFileInputStream:\n") );
 
     buf_output.Sync();
 
 
     buf_output.Sync();
 
-    wxFileInputStream file_input( wxString("test_wx.dat") );
+    wxFileInputStream file_input( file_name );
     wxBufferedInputStream buf_input( file_input );
     wxTextInputStream text_input( file_input );
 
     text_input >> si;
     wxBufferedInputStream buf_input( file_input );
     wxTextInputStream text_input( file_input );
 
     text_input >> si;
-    tmp.Printf( _T("Signed int: %d\n"), si );
+    tmp.Printf( wxT("Signed int: %d\n"), si );
     textCtrl.WriteText( tmp );
 
     text_input >> ui;
     textCtrl.WriteText( tmp );
 
     text_input >> ui;
-    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    tmp.Printf( wxT("Unsigned int: %u\n"), ui );
     textCtrl.WriteText( tmp );
 
     text_input >> d;
     textCtrl.WriteText( tmp );
 
     text_input >> d;
-    tmp.Printf( _T("Double: %f\n"), d );
+    tmp.Printf( wxT("Double: %f\n"), d );
     textCtrl.WriteText( tmp );
 
     text_input >> f;
     textCtrl.WriteText( tmp );
 
     text_input >> f;
-    tmp.Printf( _T("Float: %f\n"), f );
+    tmp.Printf( wxT("Float: %f\n"), f );
     textCtrl.WriteText( tmp );
 
     text_input >> str;
     textCtrl.WriteText( tmp );
 
     text_input >> str;
-    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    tmp.Printf( wxT("String: %s\n"), str.c_str() );
     textCtrl.WriteText( tmp );
 
 
 
     textCtrl.WriteText( tmp );
 
 
 
-    textCtrl << "\nTest for wxDataStream:\n\n";
+    textCtrl << wxT("\nTest for wxDataStream:\n\n");
 
 
-    textCtrl.WriteText( "Writing to wxDataOutputStream:\n" );
+    textCtrl.WriteText( wxT("Writing to wxDataOutputStream:\n") );
 
     file_output.SeekO( 0 );
     wxDataOutputStream data_output( buf_output );
 
 
     file_output.SeekO( 0 );
     wxDataOutputStream data_output( buf_output );
 
-    wxInt16 i16 = (short)0xFFFF;
-    tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
+    wxInt16 i16 = (unsigned short)0xFFFF;
+    tmp.Printf( wxT("Signed int16: %d\n"), (int)i16 );
     textCtrl.WriteText( tmp );
     data_output.Write16( i16 );
 
     wxUint16 ui16 = 0xFFFF;
     textCtrl.WriteText( tmp );
     data_output.Write16( i16 );
 
     wxUint16 ui16 = 0xFFFF;
-    tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
+    tmp.Printf( wxT("Unsigned int16: %u\n"), (unsigned int) ui16 );
     textCtrl.WriteText( tmp );
     data_output.Write16( ui16 );
 
     d = 2.01234567890123456789;
     textCtrl.WriteText( tmp );
     data_output.Write16( ui16 );
 
     d = 2.01234567890123456789;
-    tmp.Printf( _T("Double: %f\n"), d );
+    tmp.Printf( wxT("Double: %f\n"), d );
     textCtrl.WriteText( tmp );
     data_output.WriteDouble( d );
 
     textCtrl.WriteText( tmp );
     data_output.WriteDouble( d );
 
-    str = "Hello!";
-    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    str = wxT("Hello!");
+    tmp.Printf( wxT("String: %s\n"), str.c_str() );
     textCtrl.WriteText( tmp );
     data_output.WriteString( str );
 
     buf_output.Sync();
 
     textCtrl.WriteText( tmp );
     data_output.WriteString( str );
 
     buf_output.Sync();
 
-    textCtrl.WriteText( "\nReading from wxDataInputStream:\n" );
+    textCtrl.WriteText( wxT("\nReading from wxDataInputStream:\n") );
 
     file_input.SeekI( 0 );
     wxDataInputStream data_input( buf_input );
 
     i16 = data_input.Read16();
 
     file_input.SeekI( 0 );
     wxDataInputStream data_input( buf_input );
 
     i16 = data_input.Read16();
-    tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
+    tmp.Printf( wxT("Signed int16: %d\n"), (int)i16 );
     textCtrl.WriteText( tmp );
 
     ui16 = data_input.Read16();
     textCtrl.WriteText( tmp );
 
     ui16 = data_input.Read16();
-    tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
+    tmp.Printf( wxT("Unsigned int16: %u\n"), (unsigned int) ui16 );
     textCtrl.WriteText( tmp );
 
     d = data_input.ReadDouble();
     textCtrl.WriteText( tmp );
 
     d = data_input.ReadDouble();
-    tmp.Printf( _T("Double: %f\n"), d );
+    tmp.Printf( wxT("Double: %f\n"), d );
     textCtrl.WriteText( tmp );
 
     str = data_input.ReadString();
     textCtrl.WriteText( tmp );
 
     str = data_input.ReadString();
-    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    tmp.Printf( wxT("String: %s\n"), str.c_str() );
     textCtrl.WriteText( tmp );
 }
 
     textCtrl.WriteText( tmp );
 }
 
@@ -275,71 +280,71 @@ void MyApp::DoStreamDemo2(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << _T("\nTesting wxBufferedStream:\n\n");
+    textCtrl << wxT("\nTesting wxBufferedStream:\n\n");
 
     char ch,ch2;
 
 
     char ch,ch2;
 
-    textCtrl.WriteText( "Writing number 0 to 9 to buffered wxFileOutputStream:\n\n" );
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to buffered wxFileOutputStream:\n\n") );
 
 
-    wxFileOutputStream file_output( wxString("test_wx.dat") );
+    wxFileOutputStream file_output( file_name );
     wxBufferedOutputStream buf_output( file_output );
     for (ch = 0; ch < 10; ch++)
         buf_output.Write( &ch, 1 );
     buf_output.Sync();
     wxBufferedOutputStream buf_output( file_output );
     for (ch = 0; ch < 10; ch++)
         buf_output.Write( &ch, 1 );
     buf_output.Sync();
-    
-    wxFileInputStream file_input( wxString("test_wx.dat") );
+
+    wxFileInputStream file_input( file_name );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         file_input.Read( &ch, 1 );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         file_input.Read( &ch, 1 );
-        textCtrl.WriteText( (char)(ch + '0') );
+        textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
     }
     }
-    textCtrl.WriteText( "\n\n\n" );
-    
-    textCtrl.WriteText( "Writing number 0 to 9 to buffered wxFileOutputStream, then\n" );
-    textCtrl.WriteText( "seeking back to #3 and writing 3:\n\n" );
+    textCtrl.WriteText( wxT("\n\n\n") );
+
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to buffered wxFileOutputStream, then\n") );
+    textCtrl.WriteText( wxT("seeking back to #3 and writing 0:\n\n") );
 
 
-    wxFileOutputStream file_output2( wxString("test_wx2.dat") );
+    wxFileOutputStream file_output2( file_name2 );
     wxBufferedOutputStream buf_output2( file_output2 );
     for (ch = 0; ch < 10; ch++)
         buf_output2.Write( &ch, 1 );
     buf_output2.SeekO( 3 );
     wxBufferedOutputStream buf_output2( file_output2 );
     for (ch = 0; ch < 10; ch++)
         buf_output2.Write( &ch, 1 );
     buf_output2.SeekO( 3 );
-    ch = 3;
+    ch = 0;
     buf_output2.Write( &ch, 1 );
     buf_output2.Sync();
     buf_output2.Write( &ch, 1 );
     buf_output2.Sync();
-    
-    wxFileInputStream file_input2( wxString("test_wx2.dat") );
+
+    wxFileInputStream file_input2( file_name2 );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         file_input2.Read( &ch, 1 );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         file_input2.Read( &ch, 1 );
-        textCtrl.WriteText( (char)(ch + '0') );
+        textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
     }
     }
-    textCtrl.WriteText( "\n\n\n" );
-    
+    textCtrl.WriteText( wxT("\n\n\n") );
+
     // now append 2000 bytes to file (bigger than buffer)
     buf_output2.SeekO( 0, wxFromEnd );
     ch = 1;
     for (int i = 0; i < 2000; i++)
        buf_output2.Write( &ch, 1 );
     buf_output2.Sync();
     // now append 2000 bytes to file (bigger than buffer)
     buf_output2.SeekO( 0, wxFromEnd );
     ch = 1;
     for (int i = 0; i < 2000; i++)
        buf_output2.Write( &ch, 1 );
     buf_output2.Sync();
-    
-    textCtrl.WriteText( "Reading number 0 to 9 from buffered wxFileInputStream, then\n" );
-    textCtrl.WriteText( "seeking back to #3 and reading 3:\n\n" );
 
 
-    wxFileInputStream file_input3( wxString("test_wx2.dat") );
+    textCtrl.WriteText( wxT("Reading number 0 to 9 from buffered wxFileInputStream, then\n") );
+    textCtrl.WriteText( wxT("seeking back to #3 and reading the 0:\n\n") );
+
+    wxFileInputStream file_input3( file_name2 );
     wxBufferedInputStream buf_input3( file_input3 );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         buf_input3.Read( &ch, 1 );
     wxBufferedInputStream buf_input3( file_input3 );
     for (ch2 = 0; ch2 < 10; ch2++)
     {
         buf_input3.Read( &ch, 1 );
-        textCtrl.WriteText( (char)(ch + '0') );
+        textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
     }
     for (int j = 0; j < 2000; j++)
        buf_input3.Read( &ch, 1 );
     }
     for (int j = 0; j < 2000; j++)
        buf_input3.Read( &ch, 1 );
-    textCtrl.WriteText( "\n" );
+    textCtrl.WriteText( wxT("\n") );
     buf_input3.SeekI( 3 );
     buf_input3.Read( &ch, 1 );
     buf_input3.SeekI( 3 );
     buf_input3.Read( &ch, 1 );
-    textCtrl.WriteText( (char)(ch + '0') );
-    textCtrl.WriteText( "\n\n\n" );
-    
+    textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
+    textCtrl.WriteText( wxT("\n\n\n") );
+
 }
 
 void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))
 }
 
 void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))
@@ -347,159 +352,159 @@ void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << "\nTesting wxFileInputStream's and wxFFileInputStream's error handling:\n\n";
+    textCtrl << wxT("\nTesting wxFileInputStream's and wxFFileInputStream's error handling:\n\n");
 
     char ch,ch2;
 
 
     char ch,ch2;
 
-    textCtrl.WriteText( "Writing number 0 to 9 to wxFileOutputStream:\n\n" );
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream:\n\n") );
 
 
-    wxFileOutputStream file_output( wxString("test_wx.dat") );
+    wxFileOutputStream file_output( file_name );
     for (ch = 0; ch < 10; ch++)
         file_output.Write( &ch, 1 );
 
     // Testing wxFileInputStream
     for (ch = 0; ch < 10; ch++)
         file_output.Write( &ch, 1 );
 
     // Testing wxFileInputStream
-    
-    textCtrl.WriteText( "Reading 0 to 10 to wxFileInputStream:\n\n" );
 
 
-    wxFileInputStream file_input( wxString("test_wx.dat") );
+    textCtrl.WriteText( wxT("Reading 0 to 10 to wxFileInputStream:\n\n") );
+
+    wxFileInputStream file_input( file_name );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         file_input.Read( &ch, 1 );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         file_input.Read( &ch, 1 );
-        textCtrl.WriteText( "Value read: " );
-        textCtrl.WriteText( (char)(ch + '0') );
-        textCtrl.WriteText( ";  stream.LastError() returns: " );
-        switch (file_input.LastError())
+        textCtrl.WriteText( wxT("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+        switch (file_input.GetLastError())
         {
         {
-            case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-            case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-            default: textCtrl.WriteText( "Huh?\n" ); break;
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( wxT("Huh?\n") ); break;
         }
     }
         }
     }
-    textCtrl.WriteText( "\n" );
-    
-    textCtrl.WriteText( "Seeking to 0;  stream.LastError() returns: " );
+    textCtrl.WriteText( wxT("\n") );
+
+    textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
     file_input.SeekI( 0 );
     file_input.SeekI( 0 );
-    switch (file_input.LastError())
+    switch (file_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    textCtrl.WriteText( "\n" );
-    
+    textCtrl.WriteText( wxT("\n") );
+
     file_input.Read( &ch, 1 );
     file_input.Read( &ch, 1 );
-    textCtrl.WriteText( "Value read: " );
-    textCtrl.WriteText( (char)(ch + '0') );
-    textCtrl.WriteText( ";  stream.LastError() returns: " );
-    switch (file_input.LastError())
+    textCtrl.WriteText( wxT("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
+    textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+    switch (file_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    textCtrl.WriteText( "\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
+
 
 
-    
     // Testing wxFFileInputStream
     // Testing wxFFileInputStream
-    
-    textCtrl.WriteText( "Reading 0 to 10 to wxFFileInputStream:\n\n" );
 
 
-    wxFFileInputStream ffile_input( wxString("test_wx.dat") );
+    textCtrl.WriteText( wxT("Reading 0 to 10 to wxFFileInputStream:\n\n") );
+
+    wxFFileInputStream ffile_input( file_name );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         ffile_input.Read( &ch, 1 );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         ffile_input.Read( &ch, 1 );
-        textCtrl.WriteText( "Value read: " );
-        textCtrl.WriteText( (char)(ch + '0') );
-        textCtrl.WriteText( ";  stream.LastError() returns: " );
-        switch (ffile_input.LastError())
+        textCtrl.WriteText( wxT("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+        switch (ffile_input.GetLastError())
         {
         {
-            case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-            case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-            default: textCtrl.WriteText( "Huh?\n" ); break;
-           }
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( wxT("Huh?\n") ); break;
+        }
     }
     }
-    textCtrl.WriteText( "\n" );
-    
-    textCtrl.WriteText( "Seeking to 0;  stream.LastError() returns: " );
+    textCtrl.WriteText( wxT("\n") );
+
+    textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
     ffile_input.SeekI( 0 );
     ffile_input.SeekI( 0 );
-    switch (ffile_input.LastError())
+    switch (ffile_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    textCtrl.WriteText( "\n" );
-    
+    textCtrl.WriteText( wxT("\n") );
+
     ffile_input.Read( &ch, 1 );
     ffile_input.Read( &ch, 1 );
-    textCtrl.WriteText( "Value read: " );
-    textCtrl.WriteText( (char)(ch + '0') );
-    textCtrl.WriteText( ";  stream.LastError() returns: " );
-    switch (ffile_input.LastError())
+    textCtrl.WriteText( wxT("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + '0') );
+    textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+    switch (ffile_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    textCtrl.WriteText( "\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
 
     // Testing wxFFileInputStream
 
     // Testing wxFFileInputStream
-    
-    textCtrl.WriteText( "Reading 0 to 10 to buffered wxFFileInputStream:\n\n" );
 
 
-    wxFFileInputStream ffile_input2( wxString("test_wx.dat") );
+    textCtrl.WriteText( wxT("Reading 0 to 10 to buffered wxFFileInputStream:\n\n") );
+
+    wxFFileInputStream ffile_input2( file_name );
     wxBufferedInputStream buf_input( ffile_input2 );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         buf_input.Read( &ch, 1 );
     wxBufferedInputStream buf_input( ffile_input2 );
     for (ch2 = 0; ch2 < 11; ch2++)
     {
         buf_input.Read( &ch, 1 );
-        textCtrl.WriteText( "Value read: " );
-        textCtrl.WriteText( (char)(ch + '0') );
-        textCtrl.WriteText( ";  stream.LastError() returns: " );
-        switch (buf_input.LastError())
+        textCtrl.WriteText( wxT("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+        switch (buf_input.GetLastError())
         {
         {
-            case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-            case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-            default: textCtrl.WriteText( "Huh?\n" ); break;
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( wxT("Huh?\n") ); break;
         }
     }
         }
     }
-    textCtrl.WriteText( "\n" );
-    
-    textCtrl.WriteText( "Seeking to 0;  stream.LastError() returns: " );
+    textCtrl.WriteText( wxT("\n") );
+
+    textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
     buf_input.SeekI( 0 );
     buf_input.SeekI( 0 );
-    switch (buf_input.LastError())
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    textCtrl.WriteText( "\n" );
-    
+    textCtrl.WriteText( wxT("\n") );
+
     buf_input.Read( &ch, 1 );
     buf_input.Read( &ch, 1 );
-    textCtrl.WriteText( "Value read: " );
-    textCtrl.WriteText( (char)(ch + '0') );
-    textCtrl.WriteText( ";  stream.LastError() returns: " );
-    switch (buf_input.LastError())
+    textCtrl.WriteText( wxT("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + '0') );
+    textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
 }
 
     }
 }
 
@@ -508,138 +513,138 @@ void MyApp::DoStreamDemo4(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     wxString msg;
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     wxString msg;
-    
+
     textCtrl.Clear();
     textCtrl.Clear();
-    textCtrl << "\nTesting wxStreamBuffer:\n\n";
+    textCtrl << wxT("\nTesting wxStreamBuffer:\n\n");
 
     // bigger than buffer
 
     // bigger than buffer
-    textCtrl.WriteText( "Writing 2000x 1 to wxFileOutputStream.\n\n" );
+    textCtrl.WriteText( wxT("Writing 2000x 1 to wxFileOutputStream.\n\n") );
 
 
-    wxFileOutputStream file_output( wxString("test_wx.dat") );
+    wxFileOutputStream file_output( file_name );
     for (int i = 0; i < 2000; i++)
     {
         char ch = 1;
         file_output.Write( &ch, 1 );
     }
 
     for (int i = 0; i < 2000; i++)
     {
         char ch = 1;
         file_output.Write( &ch, 1 );
     }
 
-    textCtrl.WriteText( "Opening with a buffered wxFileInputStream:\n\n" );
+    textCtrl.WriteText( wxT("Opening with a buffered wxFileInputStream:\n\n") );
 
 
-    wxFileInputStream file_input( wxString("test_wx.dat") );
+    wxFileInputStream file_input( file_name );
     wxBufferedInputStream buf_input( file_input );
     wxBufferedInputStream buf_input( file_input );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
-    
+    textCtrl.WriteText( wxT("\n\n") );
 
 
-    textCtrl.WriteText( "Seeking to position 300:\n\n" );
+
+    textCtrl.WriteText( wxT("Seeking to position 300:\n\n") );
 
     buf_input.SeekI( 300 );
 
     buf_input.SeekI( 300 );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
-    
+    textCtrl.WriteText( wxT("\n\n") );
+
 
     char buf[2000];
 
 
     char buf[2000];
 
-    textCtrl.WriteText( "Reading 500 bytes:\n\n" );
+    textCtrl.WriteText( wxT("Reading 500 bytes:\n\n") );
 
     buf_input.Read( buf, 500 );
 
     buf_input.Read( buf, 500 );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
-    
-    textCtrl.WriteText( "Reading another 500 bytes:\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
+
+    textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 
     buf_input.Read( buf, 500 );
 
     buf_input.Read( buf, 500 );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
 
 
-    textCtrl.WriteText( "Reading another 500 bytes:\n\n" );
+    textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 
     buf_input.Read( buf, 500 );
 
     buf_input.Read( buf, 500 );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
 
 
-    textCtrl.WriteText( "Reading another 500 bytes:\n\n" );
+    textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 
     buf_input.Read( buf, 500 );
 
     buf_input.Read( buf, 500 );
-    
-    textCtrl.WriteText( "wxBufferedInputStream.LastError() returns: " );
-    switch (buf_input.LastError())
+
+    textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
     {
     {
-        case wxSTREAM_NOERROR:      textCtrl.WriteText( "wxSTREAM_NOERROR\n" ); break;
-        case wxSTREAM_EOF:          textCtrl.WriteText( "wxSTREAM_EOF\n" ); break;
-        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( "wxSTREAM_READ_ERROR\n" ); break;
-        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( "wxSTREAM_WRITE_ERROR\n" ); break;
-        default: textCtrl.WriteText( "Huh?\n" ); break;
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( wxT("Huh?\n") ); break;
     }
     }
-    msg.Printf( "wxBufferedInputStream.LastRead() returns: %d\n", (int)buf_input.LastRead() );
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    msg.Printf( "wxBufferedInputStream.TellI() returns: %d\n", (int)buf_input.TellI() );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
     textCtrl.WriteText( msg );
     textCtrl.WriteText( msg );
-    textCtrl.WriteText( "\n\n" );
+    textCtrl.WriteText( wxT("\n\n") );
 }
 
 void MyApp::DoStreamDemo5(wxCommandEvent& WXUNUSED(event))
 }
 
 void MyApp::DoStreamDemo5(wxCommandEvent& WXUNUSED(event))
@@ -647,73 +652,232 @@ void MyApp::DoStreamDemo5(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << "\nTesting wxFileInputStream's Peek():\n\n";
+    textCtrl << wxT("\nTesting wxFileInputStream's Peek():\n\n");
 
     char ch;
     wxString str;
 
 
     char ch;
     wxString str;
 
-    textCtrl.WriteText( "Writing number 0 to 9 to wxFileOutputStream:\n\n" );
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream:\n\n") );
 
 
-    wxFileOutputStream file_output( wxString("test_wx.dat") );
+    wxFileOutputStream file_output( file_name );
     for (ch = 0; ch < 10; ch++)
         file_output.Write( &ch, 1 );
     for (ch = 0; ch < 10; ch++)
         file_output.Write( &ch, 1 );
-        
+
     file_output.Sync();
     file_output.Sync();
-    
-    wxFileInputStream file_input( wxString("test_wx.dat") );
-    
+
+    wxFileInputStream file_input( file_name );
+
     ch = file_input.Peek();
     ch = file_input.Peek();
-    str.Printf( "First char peeked: %d\n", (int) ch );
+    str.Printf( wxT("First char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = file_input.GetC();
     ch = file_input.GetC();
-    str.Printf( "First char read: %d\n", (int) ch );
+    str.Printf( wxT("First char read: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = file_input.Peek();
     ch = file_input.Peek();
-    str.Printf( "Second char peeked: %d\n", (int) ch );
+    str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = file_input.GetC();
     ch = file_input.GetC();
-    str.Printf( "Second char read: %d\n", (int) ch );
+    str.Printf( wxT("Second char read: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = file_input.Peek();
     ch = file_input.Peek();
-    str.Printf( "Third char peeked: %d\n", (int) ch );
+    str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = file_input.GetC();
     ch = file_input.GetC();
-    str.Printf( "Third char read: %d\n", (int) ch );
+    str.Printf( wxT("Third char read: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
-    
-    textCtrl << "\n\n\nTesting wxMemoryInputStream's Peek():\n\n";
-    
+
+
+    textCtrl << wxT("\n\n\nTesting wxMemoryInputStream's Peek():\n\n");
+
     char buf[] = { 0,1,2,3,4,5,6,7,8,9,10 };
     wxMemoryInputStream input( buf, 10 );
     char buf[] = { 0,1,2,3,4,5,6,7,8,9,10 };
     wxMemoryInputStream input( buf, 10 );
-    
+
     ch = input.Peek();
     ch = input.Peek();
-    str.Printf( "First char peeked: %d\n", (int) ch );
+    str.Printf( wxT("First char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = input.GetC();
     ch = input.GetC();
-    str.Printf( "First char read: %d\n", (int) ch );
+    str.Printf( wxT("First char read: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = input.Peek();
     ch = input.Peek();
-    str.Printf( "Second char peeked: %d\n", (int) ch );
+    str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = input.GetC();
     ch = input.GetC();
-    str.Printf( "Second char read: %d\n", (int) ch );
+    str.Printf( wxT("Second char read: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = input.Peek();
     ch = input.Peek();
-    str.Printf( "Third char peeked: %d\n", (int) ch );
+    str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
     textCtrl.WriteText( str );
     textCtrl.WriteText( str );
-    
+
     ch = input.GetC();
     ch = input.GetC();
-    str.Printf( "Third char read: %d\n", (int) ch );
+    str.Printf( wxT("Third char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+}
+
+void MyApp::DoStreamDemo6(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    textCtrl.Clear();
+    textCtrl.WriteText( wxT("\nTesting Ungetch():\n\n") );
+
+    char ch = 0;
+    wxString str;
+
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream...\n\n") );
+
+    wxFileOutputStream file_output( file_name );
+    for (ch = 0; ch < 10; ch++)
+        file_output.Write( &ch, 1 );
+
+    file_output.Sync();
+
+    textCtrl.WriteText( wxT("Reading char from wxFileInputStream:\n\n") );
+
+    wxFileInputStream file_input( file_name );
+
+    ch = file_input.GetC();
+    size_t pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading another char from wxFileInputStream:\n\n") );
+
+    ch = file_input.GetC();
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading yet another char from wxFileInputStream:\n\n") );
+
+    ch = file_input.GetC();
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxFileInputStream...\n\n") );
+
+    file_input.Ungetch( 5 );
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Now at position %d\n\n"), (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading char from wxFileInputStream:\n\n") );
+
+    ch = file_input.GetC();
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading another char from wxFileInputStream:\n\n") );
+
+    ch = file_input.GetC();
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxFileInputStream again...\n\n") );
+
+    file_input.Ungetch( 5 );
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Now at position %d\n\n"), (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Seeking to pos 3 in wxFileInputStream. This invalidates the writeback buffer.\n\n") );
+
+    file_input.SeekI( 3 );
+
+    ch = file_input.GetC();
+    pos = (size_t)file_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+}
+
+void MyApp::DoStreamDemo7(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    textCtrl.Clear();
+    textCtrl.WriteText( wxT("\nTesting Ungetch() in buffered input stream:\n\n") );
+
+    char ch = 0;
+    wxString str;
+
+    textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream...\n\n") );
+
+    wxFileOutputStream file_output( file_name );
+    for (ch = 0; ch < 10; ch++)
+        file_output.Write( &ch, 1 );
+
+    file_output.Sync();
+
+    textCtrl.WriteText( wxT("Reading char from wxBufferedInputStream via wxFileInputStream:\n\n") );
+
+    wxFileInputStream file_input( file_name );
+    wxBufferedInputStream buf_input( file_input );
+
+    ch = buf_input.GetC();
+    size_t pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading another char from wxBufferedInputStream:\n\n") );
+
+    ch = buf_input.GetC();
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading yet another char from wxBufferedInputStream:\n\n") );
+
+    ch = buf_input.GetC();
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxBufferedInputStream...\n\n") );
+
+    buf_input.Ungetch( 5 );
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Now at position %d\n\n"), (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading char from wxBufferedInputStream:\n\n") );
+
+    ch = buf_input.GetC();
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Reading another char from wxBufferedInputStream:\n\n") );
+
+    ch = buf_input.GetC();
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxBufferedInputStream again...\n\n") );
+
+    buf_input.Ungetch( 5 );
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Now at position %d\n\n"), (int) pos );
+    textCtrl.WriteText( str );
+
+    textCtrl.WriteText( wxT("Seeking to pos 3 in wxBufferedInputStream. This invalidates the writeback buffer.\n\n") );
+
+    buf_input.SeekI( 3 );
+
+    ch = buf_input.GetC();
+    pos = (size_t)buf_input.TellI();
+    str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
     textCtrl.WriteText( str );
 }
 
     textCtrl.WriteText( str );
 }
 
@@ -723,19 +887,14 @@ void MyApp::DoUnicodeDemo(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << "\nTest wchar_t to char (Unicode to ANSI/Multibyte) converions:";
+    textCtrl << wxT("\nTest wchar_t to char (Unicode to ANSI/Multibyte) converions:");
 
     wxString str;
 
     wxString str;
-    str = _T("Robert Röbling\n");
+    str = wxT("Robert R\366bling\n");
 
     printf( "\n\nConversion with wxConvLocal:\n" );
     wxConvCurrent = &wxConvLocal;
     printf( (const char*) str.mbc_str() );
 
     printf( "\n\nConversion with wxConvLocal:\n" );
     wxConvCurrent = &wxConvLocal;
     printf( (const char*) str.mbc_str() );
-
-    printf( "\n\nConversion with wxConvGdk:\n" );
-    wxConvCurrent = &wxConvGdk;
-    printf( (const char*) str.mbc_str() );
-
     printf( "\n\nConversion with wxConvLibc:\n" );
     wxConvCurrent = &wxConvLibc;
     printf( (const char*) str.mbc_str() );
     printf( "\n\nConversion with wxConvLibc:\n" );
     wxConvCurrent = &wxConvLibc;
     printf( (const char*) str.mbc_str() );
@@ -745,10 +904,10 @@ void MyApp::DoUnicodeDemo(wxCommandEvent& WXUNUSED(event))
 
 void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
 {
-    static wxString s_defaultExt = "xyz";
+    static wxString s_defaultExt = wxT("xyz");
 
 
-    wxString ext = wxGetTextFromUser("Enter a file extension: ",
-                                     "MIME database test",
+    wxString ext = wxGetTextFromUser(wxT("Enter a file extension: "),
+                                     wxT("MIME database test"),
                                      s_defaultExt);
     if ( !!ext )
     {
                                      s_defaultExt);
     if ( !!ext )
     {
@@ -761,16 +920,16 @@ void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
 
             static const wxFileTypeInfo fallbacks[] =
             {
 
             static const wxFileTypeInfo fallbacks[] =
             {
-                wxFileTypeInfo("application/xyz",
-                               "XyZ %s",
-                               "XyZ -p %s",
-                               "The one and only XYZ format file",
-                               "xyz", "123", NULL),
-                wxFileTypeInfo("text/html",
-                               "lynx %s",
-                               "lynx -dump %s | lpr",
-                               "HTML document (from fallback)",
-                               "htm", "html", NULL),
+                wxFileTypeInfo(wxT("application/xyz"),
+                               wxT("XyZ %s"),
+                               wxT("XyZ -p %s"),
+                               wxT("The one and only XYZ format file"),
+                               wxT("xyz"), wxT("123"), wxNullPtr),
+                wxFileTypeInfo(wxT("text/html"),
+                               wxT("lynx %s"),
+                               wxT("lynx -dump %s | lpr"),
+                               wxT("HTML document (from fallback)"),
+                               wxT("htm"), wxT("html"), wxNullPtr),
 
                 // must terminate the table with this!
                 wxFileTypeInfo()
 
                 // must terminate the table with this!
                 wxFileTypeInfo()
@@ -784,7 +943,7 @@ void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
         wxFileType *filetype = m_mimeDatabase->GetFileTypeFromExtension(ext);
         if ( !filetype )
         {
         wxFileType *filetype = m_mimeDatabase->GetFileTypeFromExtension(ext);
         if ( !filetype )
         {
-            textCtrl << "Unknown extension '" << ext << "'\n";
+            textCtrl << wxT("Unknown extension '") << ext << wxT("'\n");
         }
         else
         {
         }
         else
         {
@@ -792,18 +951,17 @@ void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
             filetype->GetMimeType(&type);
             filetype->GetDescription(&desc);
 
             filetype->GetMimeType(&type);
             filetype->GetDescription(&desc);
 
-            wxString filename = "filename";
-            filename << "." << ext;
+            wxString filename = wxT("filename");
+            filename << wxT(".") << ext;
             wxFileType::MessageParameters params(filename, type);
             filetype->GetOpenCommand(&open, params);
 
             wxFileType::MessageParameters params(filename, type);
             filetype->GetOpenCommand(&open, params);
 
-            textCtrl << "MIME information about extension '" << ext << "'\n"
-                     << "\tMIME type: " << ( !type ? "unknown"
-                                                   : type.c_str() ) << '\n'
-                     << "\tDescription: " << ( !desc ? "" : desc.c_str() )
-                        << '\n'
-                     << "\tCommand to open: " << ( !open ? "no" : open.c_str() )
-                        << '\n';
+            textCtrl << wxT("MIME information about extension '") << ext << wxT('\n')
+                     << wxT("\tMIME type: ") << ( !type ? wxString("unknown") : type ) << wxT('\n')
+                     << wxT("\tDescription: ") << ( !desc ? wxString(wxEmptyString) : desc )
+                        << wxT('\n')
+                     << wxT("\tCommand to open: ") << ( !open ? wxString("no") : open )
+                        << wxT('\n');
 
             delete filetype;
         }
 
             delete filetype;
         }
@@ -816,229 +974,89 @@ void MyApp::DoByteOrderDemo(wxCommandEvent& WXUNUSED(event))
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
-    textCtrl << "\nTest byte order macros:\n\n";
+    textCtrl << wxT("\nTest byte order macros:\n\n");
 
 
-    if (wxBYTE_ORDER == wxLITTLE_ENDIAN)
-        textCtrl << "This is a little endian system.\n\n";
-    else
-        textCtrl << "This is a big endian system.\n\n";
+    #if wxBYTE_ORDER == wxLITTLE_ENDIAN
+        textCtrl << wxT("This is a little endian system.\n\n");
+    #else
+        textCtrl << wxT("This is a big endian system.\n\n");
+    #endif
 
     wxString text;
 
     wxInt32 var = 0xF1F2F3F4;
 
     wxString text;
 
     wxInt32 var = 0xF1F2F3F4;
-    text = "";
-    text.Printf( _T("Value of wxInt32 is now: %#x.\n\n"), var );
+    text = wxEmptyString;
+    text.Printf( wxT("Value of wxInt32 is now: %#x.\n\n"), var );
     textCtrl.WriteText( text );
 
     textCtrl.WriteText( text );
 
-    text = "";
-    text.Printf( _T("Value of swapped wxInt32 is: %#x.\n\n"), wxINT32_SWAP_ALWAYS( var ) );
+    text = wxEmptyString;
+    text.Printf( wxT("Value of swapped wxInt32 is: %#x.\n\n"), wxINT32_SWAP_ALWAYS( var ) );
     textCtrl.WriteText( text );
 
     textCtrl.WriteText( text );
 
-    text = "";
-    text.Printf( _T("Value of wxInt32 swapped on little endian is: %#x.\n\n"), wxINT32_SWAP_ON_LE( var ) );
+    text = wxEmptyString;
+    text.Printf( wxT("Value of wxInt32 swapped on little endian is: %#x.\n\n"), wxINT32_SWAP_ON_LE( var ) );
     textCtrl.WriteText( text );
 
     textCtrl.WriteText( text );
 
-    text = "";
-    text.Printf( _T("Value of wxInt32 swapped on big endian is: %#x.\n\n"), wxINT32_SWAP_ON_BE( var ) );
+    text = wxEmptyString;
+    text.Printf( wxT("Value of wxInt32 swapped on big endian is: %#x.\n\n"), wxINT32_SWAP_ON_BE( var ) );
     textCtrl.WriteText( text );
 }
 
     textCtrl.WriteText( text );
 }
 
-void MyApp::DoTimeDemo(wxCommandEvent& WXUNUSED(event))
-{
-    wxTextCtrl& textCtrl = * GetTextCtrl();
-
-    textCtrl.Clear();
-    textCtrl << "\nTest class wxTime:\n";
-    wxTime now;
-    textCtrl << "It is now " << (wxString) now << "\n";
-}
-
-void MyApp::DoDateDemo(wxCommandEvent& WXUNUSED(event))
-{
-    wxTextCtrl& textCtrl = * GetTextCtrl();
-
-    textCtrl.Clear();
-    textCtrl << "\nTest class wxDate" << "\n";
-
-    // Various versions of the constructors
-    // and various output
-
-    wxDate x(10,20,1962);
-
-    textCtrl << x.FormatDate(wxFULL) << "  (full)\n";
-
-    // constuctor with a string, just printing the day of the week
-    wxDate y("8/8/1988");
-
-    textCtrl << y.FormatDate(wxDAY) << "  (just day)\n";
-
-    // constructor with a julian
-    wxDate z( 2450000L );
-    textCtrl << z.FormatDate(wxFULL) << "  (full)\n";
-
-    // using date addition and subtraction
-    wxDate a = x + 10;
-    textCtrl << a.FormatDate(wxFULL) << "  (full)\n";
-    a = a - 25;
-    textCtrl << a.FormatDate(wxEUROPEAN) << "  (European)\n";
-
-    // Using subtraction of two date objects
-    wxDate a1 = wxString("7/13/1991");
-    wxDate a2 = a1 + 14;
-    textCtrl << (a1-a2) << "\n";
-    textCtrl << (a2+=10) << "\n";
-
-    a1++;
-    textCtrl << "Tomorrow= " << a1.FormatDate(wxFULL) << "\n";
-
-    wxDate tmpDate1("08/01/1991");
-    wxDate tmpDate2("07/14/1991");
-    textCtrl << "a1 (7-14-91) < 8-01-91 ? ==> " << ((a1 < tmpDate1) ? "TRUE" : "FALSE") << "\n";
-    textCtrl << "a1 (7-14-91) > 8-01-91 ? ==> " << ((a1 > tmpDate1) ? "TRUE" : "FALSE") << "\n";
-    textCtrl << "a1 (7-14-91)== 7-14-91 ? ==> " << ((a1==tmpDate2) ? "TRUE" : "FALSE") << "\n";
-
-    wxDate a3 = a1;
-    textCtrl << "a1 (7-14-91)== a3 (7-14-91) ? ==> " << ((a1==a3) ? "TRUE" : "FALSE") << "\n";
-    wxDate a4 = a1;
-    textCtrl << "a1 (7-14-91)== a4 (7-15-91) ? ==> " << ((a1==++a4) ? "TRUE" : "FALSE") << "\n";
-
-    wxDate a5 = wxString("today");
-    textCtrl << "Today is: " << a5 << "\n";
-    a4 = "TODAY";
-    textCtrl << "Today (a4) is: " << a4 << "\n";
-
-    textCtrl << "Today + 4 is: " << (a4+=4) << "\n";
-    a4 = "TODAY";
-    textCtrl << "Today - 4 is: " << (a4-=4) << "\n";
-
-    textCtrl << "=========== Leap Year Test ===========\n";
-    a1 = "1/15/1992";
-    textCtrl << a1.FormatDate(wxFULL) << "  " << ((a1.IsLeapYear()) ? "Leap" : "non-Leap");
-    textCtrl << "  " << "day of year:  " << a1.GetDayOfYear() << "\n";
-
-    a1 = "2/16/1993";
-    textCtrl << a1.FormatDate(wxFULL) << "  " << ((a1.IsLeapYear()) ? "Leap" : "non-Leap");
-    textCtrl << "  " << "day of year:  " << a1.GetDayOfYear() << "\n";
-
-    textCtrl << "================== string assignment test ====================\n";
-    wxString date_string=a1;
-    textCtrl << "a1 as a string (s/b 2/16/1993) ==> " << date_string << "\n";
-
-    textCtrl << "================== SetFormat test ============================\n";
-    a1.SetFormat(wxFULL);
-    textCtrl << "a1 (s/b FULL format) ==> " << a1 << "\n";
-    a1.SetFormat(wxEUROPEAN);
-    textCtrl << "a1 (s/b EUROPEAN format) ==> " << a1 << "\n";
-
-    textCtrl << "================== SetOption test ============================\n";
-    textCtrl << "Date abbreviation ON\n";
-
-    a1.SetOption(wxDATE_ABBR);
-    a1.SetFormat(wxMONTH);
-    textCtrl << "a1 (s/b MONTH format) ==> " << a1 << "\n";
-    a1.SetFormat(wxDAY);
-    textCtrl << "a1 (s/b DAY format) ==> " << a1 << "\n";
-    a1.SetFormat(wxFULL);
-    textCtrl << "a1 (s/b FULL format) ==> " << a1 << "\n";
-    a1.SetFormat(wxEUROPEAN);
-    textCtrl << "a1 (s/b EUROPEAN format) ==> " << a1 << "\n";
-    textCtrl << "Century suppression ON\n";
-    a1.SetOption(wxNO_CENTURY);
-    a1.SetFormat(wxMDY);
-    textCtrl << "a1 (s/b MDY format) ==> " << a1 << "\n";
-    textCtrl << "Century suppression OFF\n";
-    a1.SetOption(wxNO_CENTURY,FALSE);
-    textCtrl << "a1 (s/b MDY format) ==> " << a1 << "\n";
-    textCtrl << "Century suppression ON\n";
-    a1.SetOption(wxNO_CENTURY);
-    textCtrl << "a1 (s/b MDY format) ==> " << a1 << "\n";
-    a1.SetFormat(wxFULL);
-    textCtrl << "a1 (s/b FULL format) ==> " << a1 << "\n";
-
-    textCtrl << "\n=============== Version 4.0 Enhancement Test =================\n";
-
-    wxDate v4("11/26/1966");
-    textCtrl << "\n---------- Set Stuff -----------\n";
-    textCtrl << "First, 'Set' to today..." << "\n";
-    textCtrl << "Before 'Set' => " << v4 << "\n";
-    textCtrl << "After  'Set' => " << v4.Set() << "\n\n";
-
-    textCtrl << "Set to 11/26/66 => " << v4.Set(11,26,1966) << "\n";
-    textCtrl << "Current Julian  => " << v4.GetJulianDate() << "\n";
-    textCtrl << "Set to Julian 2450000L => " << v4.Set(2450000L) << "\n";
-    textCtrl << "See! => " << v4.GetJulianDate() << "\n";
-
-    textCtrl << "---------- Add Stuff -----------\n";
-    textCtrl << "Start => " << v4 << "\n";
-    textCtrl << "Add 4 Weeks => " << v4.AddWeeks(4) << "\n";
-    textCtrl << "Sub 1 Month => " << v4.AddMonths(-1) << "\n";
-    textCtrl << "Add 2 Years => " << v4.AddYears(2) << "\n";
-
-    textCtrl << "---------- Misc Stuff -----------\n";
-    textCtrl << "The date aboves' day of the month is => " << v4.GetDay() << "\n";
-    textCtrl << "There are " << v4.GetDaysInMonth() << " days in this month.\n";
-    textCtrl << "The first day of this month lands on " << v4.GetFirstDayOfMonth() << "\n";
-    textCtrl << "This day happens to be " << v4.GetDayOfWeekName() << "\n";
-    textCtrl << "the " << v4.GetDayOfWeek() << " day of the week," << "\n";
-    textCtrl << "on the " << v4.GetWeekOfYear() << " week of the year," << "\n";
-    textCtrl << "on the " << v4.GetWeekOfMonth() << " week of the month, " << "\n";
-    textCtrl << "(which is " << v4.GetMonthName() << ")\n";
-    textCtrl << "the "<< v4.GetMonth() << "th month in the year.\n";
-    textCtrl << "The year alone is " << v4.GetYear() << "\n";
-
-    textCtrl << "---------- First and Last Stuff -----------\n";
-    v4.Set();
-    textCtrl << "The first date of this month is " << v4.GetMonthStart() << "\n";
-    textCtrl << "The last date of this month is " << v4.GetMonthEnd() << "\n";
-    textCtrl << "The first date of this year is " << v4.GetYearStart() << "\n";
-    textCtrl << "The last date of this year is " << v4.GetYearEnd() << "\n";
-}
-
 void MyApp::DoVariantDemo(wxCommandEvent& WXUNUSED(event) )
 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
 void MyApp::DoVariantDemo(wxCommandEvent& WXUNUSED(event) )
 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
-    wxVariant var1 = "String value";
-    textCtrl << "var1 = " << var1.MakeString() << "\n";
+    wxVariant var1 = wxT("String value");
+    textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
 
     // Conversion
     wxString str = var1.MakeString();
 
     var1 = 123.456;
 
     // Conversion
     wxString str = var1.MakeString();
 
     var1 = 123.456;
-    textCtrl << "var1 = " << var1.GetReal() << "\n";
+    textCtrl << wxT("var1 = ") << var1.GetReal() << wxT("\n");
 
     // Implicit conversion
     double v = var1;
 
     var1 = 9876L;
 
     // Implicit conversion
     double v = var1;
 
     var1 = 9876L;
-    textCtrl << "var1 = " << var1.GetLong() << "\n";
+    textCtrl << wxT("var1 = ") << var1.GetLong() << wxT("\n");
 
     // Implicit conversion
     long l = var1;
 
     // suppress compile warnings about unused variables
 
     // Implicit conversion
     long l = var1;
 
     // suppress compile warnings about unused variables
-    if ( l < v )
-    {
-        ;
-    }
+    wxUnusedVar(l);
+    wxUnusedVar(v);
 
 
-    wxStringList stringList;
-    stringList.Add(_T("one")); stringList.Add(_T("two")); stringList.Add(_T("three"));
-    var1 = stringList;
-    textCtrl << "var1 = " << var1.MakeString() << "\n";
+    wxArrayString stringArray;
+    stringArray.Add(wxT("one")); stringArray.Add(wxT("two")); stringArray.Add(wxT("three"));
+    var1 = stringArray;
+    textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
 
     var1.ClearList();
     var1.Append(wxVariant(1.2345));
 
     var1.ClearList();
     var1.Append(wxVariant(1.2345));
-    var1.Append(wxVariant("hello"));
+    var1.Append(wxVariant(wxT("hello")));
     var1.Append(wxVariant(54321L));
 
     var1.Append(wxVariant(54321L));
 
-    textCtrl << "var1 = " << var1.MakeString() << "\n";
+    textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
 
     size_t n = var1.GetCount();
     size_t i;
     for (i = (size_t) 0; i < n; i++)
     {
 
     size_t n = var1.GetCount();
     size_t i;
     for (i = (size_t) 0; i < n; i++)
     {
-        textCtrl << "var1[" << (int) i << "] (type " << var1[i].GetType() << ") = " << var1[i].MakeString() << "\n";
+        textCtrl << wxT("var1[") << (int) i << wxT("] (type ") << var1[i].GetType() << wxT(") = ") << var1[i].MakeString() << wxT("\n");
+    }
+
+    var1 = wxVariant(new wxFont(wxSystemSettings::GetFont(wxSYS_OEM_FIXED_FONT)));
+    textCtrl << wxT("var1 = (wxfont)\"");
+    wxFont* font = wxGetVariantCast(var1,wxFont);
+    if (font)
+    {
+        textCtrl << font->GetNativeFontInfoDesc() << wxT("\"\n");
+    }
+    else
+    {
+        textCtrl << wxT("(null)\"\n");
     }
 }
 
     }
 }
 
@@ -1049,21 +1067,21 @@ END_EVENT_TABLE()
 
 // My frame constructor
 MyFrame::MyFrame(wxFrame *parent, const wxString& title,
 
 // My frame constructor
 MyFrame::MyFrame(wxFrame *parent, const wxString& title,
-       const wxPoint& pos, const wxSize& size):
-  wxFrame(parent, -1, title, pos, size)
+    const wxPoint& pos, const wxSize& size)
+    : wxFrame(parent, wxID_ANY, title, pos, size)
 {}
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 {
 {}
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 {
-  Close(TRUE);
+    Close(true);
 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 {
 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 {
-  wxMessageDialog dialog(this, "Tests various wxWindows types",
-      "About Types", wxYES_NO|wxCANCEL);
+    wxMessageDialog dialog(this, wxT("Tests various wxWidgets types"),
+        wxT("About Types"), wxYES_NO|wxCANCEL);
 
 
-  dialog.ShowModal();
+    dialog.ShowModal();
 }
 
 
 }
 
 
wxWidgets (Impactor)