use wxDC::GetMultiLineTextExtent() instead of duplicating its code in wxButton::DoGet...

[wxWidgets.git] / samples / typetest / typetest.cpp

diff --git a/samples/typetest/typetest.cpp b/samples/typetest/typetest.cpp
index 24f729bb95a2cff3d0ee650833d13a48f5ec21ec..983961312d6be4a778f64c6746bb768dc9055a6f 100644 (file)
--- a/samples/typetest/typetest.cpp
+++ b/samples/typetest/typetest.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
 // 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__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__


@@ -24,276 +24,1064 @@
 #include "wx/wx.h"
 #endif
 
 #include "wx/wx.h"
 #endif
 

-#include "wx/time.h"
-#include "wx/date.h"

 #include "wx/variant.h"
 #include "wx/variant.h"

+#include "wx/mimetype.h"

 
 #include "typetest.h"
 
 
 #include "typetest.h"
 

-#ifdef __WXGTK__
+#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 <fstream.h>
+#else
+    #include <fstream>
+#endif
+
+#include "wx/wfstream.h"
+#include "wx/datstrm.h"
+#include "wx/txtstrm.h"
+#include "wx/mstream.h"
+

 // Create a new application object
 // Create a new application object

-IMPLEMENT_APP  (MyApp)
+IMPLEMENT_APP    (MyApp)

 
 

-IMPLEMENT_DYNAMIC_CLASS        (MyApp, wxApp)
+IMPLEMENT_DYNAMIC_CLASS    (MyApp, wxApp)

 
 BEGIN_EVENT_TABLE(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_VARIANT,   MyApp::DoVariantDemo)
+    EVT_MENU(TYPES_BYTEORDER, MyApp::DoByteOrderDemo)
+#if wxUSE_UNICODE
+    EVT_MENU(TYPES_UNICODE,   MyApp::DoUnicodeDemo)
+#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_STREAM6, MyApp::DoStreamDemo6)
+    EVT_MENU(TYPES_STREAM7, MyApp::DoStreamDemo7)
+    EVT_MENU(TYPES_MIME, MyApp::DoMIMEDemo)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-bool MyApp::OnInit(void)
+wxString file_name = _T("test_wx.dat");
+wxString file_name2 = wxString(_T("test_wx2.dat"));
+
+bool MyApp::OnInit()

 {
 {

-  // Create the main frame window
-  MyFrame *frame = new MyFrame((wxFrame *) NULL, "wxWindows Types Demo",
-      wxPoint(50, 50), wxSize(450, 340));
-
-  // Give it an icon
-  frame->SetIcon(wxICON(mondrian));
-
-  // Make a menubar
-  wxMenu *file_menu = new wxMenu;
-
-  file_menu->Append(TYPES_ABOUT, "&About");
-  file_menu->AppendSeparator();
-  file_menu->Append(TYPES_DATE, "&Date test");
-  file_menu->Append(TYPES_TIME, "&Time test");
-  file_menu->Append(TYPES_VARIANT, "&Variant test");
-  file_menu->AppendSeparator();
-  file_menu->Append(TYPES_QUIT, "E&xit");
-  wxMenuBar *menu_bar = new wxMenuBar;
-  menu_bar->Append(file_menu, "&File");
-  frame->SetMenuBar(menu_bar);
-
-  m_textCtrl = new wxTextCtrl(frame, -1, "", wxPoint(0, 0), wxDefaultSize, wxTE_MULTILINE);
-
-  // Show the frame
-  frame->Show(TRUE);
-  
-  SetTopWindow(frame);
-
-  return TRUE;
+    // Create the main frame window
+    MyFrame *frame = new MyFrame((wxFrame *) NULL, _T("wxWidgets Types Demo"),
+                                 wxPoint(50, 50), wxSize(450, 340));
+
+    // Give it an icon
+    frame->SetIcon(wxICON(mondrian));
+
+    // Make a menubar
+    wxMenu *file_menu = new wxMenu;
+
+    file_menu->Append(TYPES_ABOUT, _T("&About"));
+    file_menu->AppendSeparator();
+    file_menu->Append(TYPES_QUIT, _T("E&xit\tAlt-X"));
+
+    wxMenu *test_menu = new wxMenu;
+    test_menu->Append(TYPES_VARIANT, _T("&Variant test"));
+    test_menu->Append(TYPES_BYTEORDER, _T("&Byteorder test"));
+#if wxUSE_UNICODE
+    test_menu->Append(TYPES_UNICODE, _T("&Unicode test"));
+#endif // wxUSE_UNICODE
+    test_menu->Append(TYPES_STREAM, _T("&Stream test"));
+    test_menu->Append(TYPES_STREAM2, _T("&Stream seek test"));
+    test_menu->Append(TYPES_STREAM3, _T("&Stream error test"));
+    test_menu->Append(TYPES_STREAM4, _T("&Stream buffer test"));
+    test_menu->Append(TYPES_STREAM5, _T("&Stream peek test"));
+    test_menu->Append(TYPES_STREAM6, _T("&Stream ungetch test"));
+    test_menu->Append(TYPES_STREAM7, _T("&Stream ungetch test for a buffered stream"));
+    test_menu->AppendSeparator();
+    test_menu->Append(TYPES_MIME, _T("&MIME database test"));
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(file_menu, _T("&File"));
+    menu_bar->Append(test_menu, _T("&Tests"));
+    frame->SetMenuBar(menu_bar);
+
+    m_textCtrl = new wxTextCtrl(frame, wxID_ANY, wxEmptyString,
+        wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE);
+
+    // Show the frame
+    frame->Show(true);
+
+    SetTopWindow(frame);
+
+    return true;

 }
 
 }
 

-void MyApp::DoTimeDemo(wxCommandEvent& event)
+void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))

 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();

-    cout << "\nTest class wxTime" << endl;
-    wxTime now;
-    textCtrl << "It is now " << (wxString) now << "\n";
+    textCtrl << _T("\nTest fstream vs. wxFileStream:\n\n");
+
+    textCtrl.WriteText( _T("Writing to ofstream and wxFileOutputStream:\n") );
+
+    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;
+    tmp.Printf( _T("Signed int: %d\n"), si );
+    textCtrl.WriteText( tmp );
+    text_output << si << _T("\n");
+    std_file_output << si << "\n";
+
+    unsigned int ui = 0xFFFFFFFF;
+    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    textCtrl.WriteText( tmp );
+    text_output << ui << _T("\n");
+    std_file_output << ui << "\n";
+
+    double d = 2.01234567890123456789;
+    tmp.Printf( _T("Double: %f\n"), d );
+    textCtrl.WriteText( tmp );
+    text_output << d << _T("\n");
+    std_file_output << d << "\n";
+
+    float f = (float)0.00001;
+    tmp.Printf( _T("Float: %f\n"), f );
+    textCtrl.WriteText( tmp );
+    text_output << f << _T("\n");
+    std_file_output << f << "\n";
+
+    wxString str( _T("Hello!") );
+    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    textCtrl.WriteText( tmp );
+    text_output << str << _T("\n");
+    std_file_output << str.ToAscii() << "\n";
+
+    textCtrl.WriteText( _T("\nReading from ifstream:\n") );
+
+    wxSTD ifstream std_file_input( "test_std.dat" );
+
+    std_file_input >> si;
+    tmp.Printf( _T("Signed int: %d\n"), si );
+    textCtrl.WriteText( tmp );
+
+    std_file_input >> ui;
+    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    textCtrl.WriteText( tmp );
+
+    std_file_input >> d;
+    tmp.Printf( _T("Double: %f\n"), d );
+    textCtrl.WriteText( tmp );
+
+    std_file_input >> f;
+    tmp.Printf( _T("Float: %f\n"), f );
+    textCtrl.WriteText( tmp );
+
+    char std_buf[200];
+    std_file_input >> std_buf;
+    str.FromAscii(std_buf);
+    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    textCtrl.WriteText( tmp );
+
+    textCtrl.WriteText( _T("\nReading from wxFileInputStream:\n") );
+
+    buf_output.Sync();
+
+    wxFileInputStream file_input( file_name );
+    wxBufferedInputStream buf_input( file_input );
+    wxTextInputStream text_input( file_input );
+
+    text_input >> si;
+    tmp.Printf( _T("Signed int: %d\n"), si );
+    textCtrl.WriteText( tmp );
+
+    text_input >> ui;
+    tmp.Printf( _T("Unsigned int: %u\n"), ui );
+    textCtrl.WriteText( tmp );
+
+    text_input >> d;
+    tmp.Printf( _T("Double: %f\n"), d );
+    textCtrl.WriteText( tmp );
+
+    text_input >> f;
+    tmp.Printf( _T("Float: %f\n"), f );
+    textCtrl.WriteText( tmp );
+
+    text_input >> str;
+    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    textCtrl.WriteText( tmp );
+
+
+
+    textCtrl << _T("\nTest for wxDataStream:\n\n");
+
+    textCtrl.WriteText( _T("Writing to wxDataOutputStream:\n") );
+
+    file_output.SeekO( 0 );
+    wxDataOutputStream data_output( buf_output );
+
+    wxInt16 i16 = (unsigned short)0xFFFF;
+    tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
+    textCtrl.WriteText( tmp );
+    data_output.Write16( i16 );
+
+    wxUint16 ui16 = 0xFFFF;
+    tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
+    textCtrl.WriteText( tmp );
+    data_output.Write16( ui16 );
+
+    d = 2.01234567890123456789;
+    tmp.Printf( _T("Double: %f\n"), d );
+    textCtrl.WriteText( tmp );
+    data_output.WriteDouble( d );
+
+    str = _T("Hello!");
+    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    textCtrl.WriteText( tmp );
+    data_output.WriteString( str );
+
+    buf_output.Sync();
+
+    textCtrl.WriteText( _T("\nReading from wxDataInputStream:\n") );
+
+    file_input.SeekI( 0 );
+    wxDataInputStream data_input( buf_input );
+
+    i16 = data_input.Read16();
+    tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
+    textCtrl.WriteText( tmp );
+
+    ui16 = data_input.Read16();
+    tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
+    textCtrl.WriteText( tmp );
+
+    d = data_input.ReadDouble();
+    tmp.Printf( _T("Double: %f\n"), d );
+    textCtrl.WriteText( tmp );
+
+    str = data_input.ReadString();
+    tmp.Printf( _T("String: %s\n"), str.c_str() );
+    textCtrl.WriteText( tmp );

 }
 
 }
 

-void MyApp::DoDateDemo(wxCommandEvent& event)
+void MyApp::DoStreamDemo2(wxCommandEvent& WXUNUSED(event))

 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
     textCtrl.Clear();
 {
     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";
+    textCtrl << _T("\nTesting wxBufferedStream:\n\n");
+
+    char ch,ch2;
+
+    textCtrl.WriteText( _T("Writing number 0 to 9 to buffered wxFileOutputStream:\n\n") );
+
+    wxFileOutputStream file_output( file_name );
+    wxBufferedOutputStream buf_output( file_output );
+    for (ch = 0; ch < 10; ch++)
+        buf_output.Write( &ch, 1 );
+    buf_output.Sync();
+
+    wxFileInputStream file_input( file_name );
+    for (ch2 = 0; ch2 < 10; ch2++)
+    {
+        file_input.Read( &ch, 1 );
+        textCtrl.WriteText( (wxChar)(ch + _T('0')) );
+    }
+    textCtrl.WriteText( _T("\n\n\n") );
+
+    textCtrl.WriteText( _T("Writing number 0 to 9 to buffered wxFileOutputStream, then\n") );
+    textCtrl.WriteText( _T("seeking back to #3 and writing 0:\n\n") );
+
+    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 );
+    ch = 0;
+    buf_output2.Write( &ch, 1 );
+    buf_output2.Sync();
+
+    wxFileInputStream file_input2( file_name2 );
+    for (ch2 = 0; ch2 < 10; ch2++)
+    {
+        file_input2.Read( &ch, 1 );
+        textCtrl.WriteText( (wxChar)(ch + _T('0')) );
+    }
+    textCtrl.WriteText( _T("\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();
+
+    textCtrl.WriteText( _T("Reading number 0 to 9 from buffered wxFileInputStream, then\n") );
+    textCtrl.WriteText( _T("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 );
+        textCtrl.WriteText( (wxChar)(ch + _T('0')) );
+    }
+    for (int j = 0; j < 2000; j++)
+       buf_input3.Read( &ch, 1 );
+    textCtrl.WriteText( _T("\n") );
+    buf_input3.SeekI( 3 );
+    buf_input3.Read( &ch, 1 );
+    textCtrl.WriteText( (wxChar)(ch + _T('0')) );
+    textCtrl.WriteText( _T("\n\n\n") );
+

 }
 
 }
 

-void MyApp::DoVariantDemo(wxCommandEvent& event)
+void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))

 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 
 {
     wxTextCtrl& textCtrl = * GetTextCtrl();
 

-    wxVariant var1 = "String value";
-    textCtrl << "var1 = " << (wxString) var1 << "\n";
+    textCtrl.Clear();
+    textCtrl << _T("\nTesting wxFileInputStream's and wxFFileInputStream's error handling:\n\n");
+
+    char ch,ch2;

 
 

-    // Implicit conversion
-    wxString str = var1;
+    textCtrl.WriteText( _T("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 );
+
+    // Testing wxFileInputStream
+
+    textCtrl.WriteText( _T("Reading 0 to 10 to wxFileInputStream:\n\n") );
+
+    wxFileInputStream file_input( file_name );
+    for (ch2 = 0; ch2 < 11; ch2++)
+    {
+        file_input.Read( &ch, 1 );
+        textCtrl.WriteText( _T("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+        switch (file_input.GetLastError())
+        {
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( _T("Huh?\n") ); break;
+        }
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    textCtrl.WriteText( _T("Seeking to 0;  stream.GetLastError() returns: ") );
+    file_input.SeekI( 0 );
+    switch (file_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    file_input.Read( &ch, 1 );
+    textCtrl.WriteText( _T("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + _T('0')) );
+    textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+    switch (file_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    textCtrl.WriteText( _T("\n\n") );
+
+
+    // Testing wxFFileInputStream
+
+    textCtrl.WriteText( _T("Reading 0 to 10 to wxFFileInputStream:\n\n") );
+
+    wxFFileInputStream ffile_input( file_name );
+    for (ch2 = 0; ch2 < 11; ch2++)
+    {
+        ffile_input.Read( &ch, 1 );
+        textCtrl.WriteText( _T("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+        switch (ffile_input.GetLastError())
+        {
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( _T("Huh?\n") ); break;
+        }
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    textCtrl.WriteText( _T("Seeking to 0;  stream.GetLastError() returns: ") );
+    ffile_input.SeekI( 0 );
+    switch (ffile_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    ffile_input.Read( &ch, 1 );
+    textCtrl.WriteText( _T("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + '0') );
+    textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+    switch (ffile_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    textCtrl.WriteText( _T("\n\n") );
+
+    // Testing wxFFileInputStream
+
+    textCtrl.WriteText( _T("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 );
+        textCtrl.WriteText( _T("Value read: ") );
+        textCtrl.WriteText( (wxChar)(ch + '0') );
+        textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+        switch (buf_input.GetLastError())
+        {
+            case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+            case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+            case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+            case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+            default: textCtrl.WriteText( _T("Huh?\n") ); break;
+        }
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    textCtrl.WriteText( _T("Seeking to 0;  stream.GetLastError() returns: ") );
+    buf_input.SeekI( 0 );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    textCtrl.WriteText( _T("\n") );
+
+    buf_input.Read( &ch, 1 );
+    textCtrl.WriteText( _T("Value read: ") );
+    textCtrl.WriteText( (wxChar)(ch + '0') );
+    textCtrl.WriteText( _T(";  stream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+}
+
+void MyApp::DoStreamDemo4(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    wxString msg;
+
+    textCtrl.Clear();
+    textCtrl << _T("\nTesting wxStreamBuffer:\n\n");
+
+    // bigger than buffer
+    textCtrl.WriteText( _T("Writing 2000x 1 to wxFileOutputStream.\n\n") );
+
+    wxFileOutputStream file_output( file_name );
+    for (int i = 0; i < 2000; i++)
+    {
+        char ch = 1;
+        file_output.Write( &ch, 1 );
+    }
+
+    textCtrl.WriteText( _T("Opening with a buffered wxFileInputStream:\n\n") );
+
+    wxFileInputStream file_input( file_name );
+    wxBufferedInputStream buf_input( file_input );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+
+
+    textCtrl.WriteText( _T("Seeking to position 300:\n\n") );
+
+    buf_input.SeekI( 300 );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+
+
+    char buf[2000];
+
+    textCtrl.WriteText( _T("Reading 500 bytes:\n\n") );
+
+    buf_input.Read( buf, 500 );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+
+    textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
+
+    buf_input.Read( buf, 500 );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+
+    textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
+
+    buf_input.Read( buf, 500 );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+
+    textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
+
+    buf_input.Read( buf, 500 );
+
+    textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
+    switch (buf_input.GetLastError())
+    {
+        case wxSTREAM_NO_ERROR:      textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
+        case wxSTREAM_EOF:          textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
+        case wxSTREAM_READ_ERROR:   textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
+        case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
+        default: textCtrl.WriteText( _T("Huh?\n") ); break;
+    }
+    msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
+    textCtrl.WriteText( msg );
+    msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
+    textCtrl.WriteText( msg );
+    textCtrl.WriteText( _T("\n\n") );
+}
+
+void MyApp::DoStreamDemo5(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    textCtrl.Clear();
+    textCtrl << _T("\nTesting wxFileInputStream's Peek():\n\n");
+
+    char ch;
+    wxString str;
+
+    textCtrl.WriteText( _T("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();
+
+    wxFileInputStream file_input( file_name );
+
+    ch = file_input.Peek();
+    str.Printf( wxT("First char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = file_input.GetC();
+    str.Printf( wxT("First char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = file_input.Peek();
+    str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = file_input.GetC();
+    str.Printf( wxT("Second char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = file_input.Peek();
+    str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = file_input.GetC();
+    str.Printf( wxT("Third char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+
+    textCtrl << _T("\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 );
+
+    ch = input.Peek();
+    str.Printf( wxT("First char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = input.GetC();
+    str.Printf( wxT("First char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = input.Peek();
+    str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = input.GetC();
+    str.Printf( wxT("Second char read: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = input.Peek();
+    str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
+    textCtrl.WriteText( str );
+
+    ch = input.GetC();
+    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( _T("\nTesting Ungetch():\n\n") );
+
+    char ch = 0;
+    wxString str;
+
+    textCtrl.WriteText( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("\nTesting Ungetch() in buffered input stream:\n\n") );
+
+    char ch = 0;
+    wxString str;
+
+    textCtrl.WriteText( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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( _T("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 );
+}
+
+#if wxUSE_UNICODE
+void MyApp::DoUnicodeDemo(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    textCtrl.Clear();
+    textCtrl << _T("\nTest wchar_t to char (Unicode to ANSI/Multibyte) converions:");
+
+    wxString str;
+    str = _T("Robert Röbling\n");
+
+    printf( "\n\nConversion with wxConvLocal:\n" );
+    wxConvCurrent = &wxConvLocal;
+    printf( (const char*) str.mbc_str() );
+    printf( "\n\nConversion with wxConvLibc:\n" );
+    wxConvCurrent = &wxConvLibc;
+    printf( (const char*) str.mbc_str() );
+
+}
+#endif
+
+void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
+{
+    static wxString s_defaultExt = _T("xyz");
+
+    wxString ext = wxGetTextFromUser(_T("Enter a file extension: "),
+                                     _T("MIME database test"),
+                                     s_defaultExt);
+    if ( !!ext )
+    {
+        s_defaultExt = ext;
+
+        // init MIME database if not done yet
+        if ( !m_mimeDatabase )
+        {
+            m_mimeDatabase = new wxMimeTypesManager;
+
+            static const wxFileTypeInfo fallbacks[] =
+            {
+                wxFileTypeInfo(_T("application/xyz"),
+                               _T("XyZ %s"),
+                               _T("XyZ -p %s"),
+                               _T("The one and only XYZ format file"),
+                               _T("xyz"), _T("123"), NULL),
+                wxFileTypeInfo(_T("text/html"),
+                               _T("lynx %s"),
+                               _T("lynx -dump %s | lpr"),
+                               _T("HTML document (from fallback)"),
+                               _T("htm"), _T("html"), NULL),
+
+                // must terminate the table with this!
+                wxFileTypeInfo()
+            };
+
+            m_mimeDatabase->AddFallbacks(fallbacks);
+        }
+
+        wxTextCtrl& textCtrl = * GetTextCtrl();
+
+        wxFileType *filetype = m_mimeDatabase->GetFileTypeFromExtension(ext);
+        if ( !filetype )
+        {
+            textCtrl << _T("Unknown extension '") << ext << _T("'\n");
+        }
+        else
+        {
+            wxString type, desc, open;
+            filetype->GetMimeType(&type);
+            filetype->GetDescription(&desc);
+
+            wxString filename = _T("filename");
+            filename << _T(".") << ext;
+            wxFileType::MessageParameters params(filename, type);
+            filetype->GetOpenCommand(&open, params);
+
+            textCtrl << _T("MIME information about extension '") << ext << _T("'\n")
+                     << _T("\tMIME type: ") << ( !type ? wxT("unknown")
+                                                   : type.c_str() ) << '\n'
+                     << _T("\tDescription: ") << ( !desc ? wxEmptyString : desc.c_str() )
+                        << '\n'
+                     << _T("\tCommand to open: ") << ( !open ? wxT("no") : open.c_str() )
+                        << '\n';
+
+            delete filetype;
+        }
+    }
+    //else: cancelled by user
+}
+
+void MyApp::DoByteOrderDemo(wxCommandEvent& WXUNUSED(event))
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    textCtrl.Clear();
+    textCtrl << _T("\nTest byte order macros:\n\n");
+
+    #if wxBYTE_ORDER == wxLITTLE_ENDIAN
+        textCtrl << _T("This is a little endian system.\n\n");
+    #else
+        textCtrl << _T("This is a big endian system.\n\n");
+    #endif
+
+    wxString text;
+
+    wxInt32 var = 0xF1F2F3F4;
+    text = wxEmptyString;
+    text.Printf( _T("Value of wxInt32 is now: %#x.\n\n"), var );
+    textCtrl.WriteText( text );
+
+    text = wxEmptyString;
+    text.Printf( _T("Value of swapped wxInt32 is: %#x.\n\n"), wxINT32_SWAP_ALWAYS( var ) );
+    textCtrl.WriteText( text );
+
+    text = wxEmptyString;
+    text.Printf( _T("Value of wxInt32 swapped on little endian is: %#x.\n\n"), wxINT32_SWAP_ON_LE( var ) );
+    textCtrl.WriteText( text );
+
+    text = wxEmptyString;
+    text.Printf( _T("Value of wxInt32 swapped on big endian is: %#x.\n\n"), wxINT32_SWAP_ON_BE( var ) );
+    textCtrl.WriteText( text );
+}
+
+void MyApp::DoVariantDemo(wxCommandEvent& WXUNUSED(event) )
+{
+    wxTextCtrl& textCtrl = * GetTextCtrl();
+
+    wxVariant var1 = _T("String value");
+    textCtrl << _T("var1 = ") << var1.MakeString() << _T("\n");
+
+    // Conversion
+    wxString str = var1.MakeString();

 
     var1 = 123.456;
 
     var1 = 123.456;

-    textCtrl << "var1 = " << var1.GetReal() << "\n";
+    textCtrl << _T("var1 = ") << var1.GetReal() << _T("\n");

 
     // Implicit conversion
     double v = var1;
 
     var1 = 9876L;
 
     // Implicit conversion
     double v = var1;
 
     var1 = 9876L;

-    textCtrl << "var1 = " << var1.GetLong() << "\n";
+    textCtrl << _T("var1 = ") << var1.GetLong() << _T("\n");

 
     // Implicit conversion
     long l = var1;
 
 
     // Implicit conversion
     long l = var1;
 

+    // suppress compile warnings about unused variables
+    wxUnusedVar(l);
+    wxUnusedVar(v);
+

     wxStringList stringList;
     wxStringList stringList;

-    stringList.Add("one"); stringList.Add("two"); stringList.Add("three");
+    stringList.Add(_T("one")); stringList.Add(_T("two")); stringList.Add(_T("three"));

     var1 = stringList;
     var1 = stringList;

-    textCtrl << "var1 = " << (wxString) var1 << "\n";
+    textCtrl << _T("var1 = ") << var1.MakeString() << _T("\n");

 
     var1.ClearList();
     var1.Append(wxVariant(1.2345));
 
     var1.ClearList();
     var1.Append(wxVariant(1.2345));

-    var1.Append(wxVariant("hello"));
+    var1.Append(wxVariant(_T("hello")));

     var1.Append(wxVariant(54321L));
 
     var1.Append(wxVariant(54321L));
 

-    textCtrl << "var1 = " << (wxString) var1 << "\n";
+    textCtrl << _T("var1 = ") << var1.MakeString() << _T("\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() << ") = " << (wxString) var1[i] << "\n";
+        textCtrl << _T("var1[") << (int) i << _T("] (type ") << var1[i].GetType() << _T(") = ") << var1[i].MakeString() << _T("\n");
+    }
+
+    var1 = wxVariant(new wxFont(wxSystemSettings::GetFont(wxSYS_OEM_FIXED_FONT)));
+    textCtrl << _T("var1 = (wxfont)\"");
+    wxFont* font = wxGetVariantCast(var1,wxFont);
+    if (font)
+    {
+        textCtrl << font->GetNativeFontInfoDesc() << _T("\"\n");
+    }
+    else
+    {
+        textCtrl << _T("(null)\"\n");

     }
 }
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     }
 }
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)

-       EVT_MENU(TYPES_QUIT, MyFrame::OnQuit)
-       EVT_MENU(TYPES_ABOUT, MyFrame::OnAbout)
+    EVT_MENU(TYPES_QUIT, MyFrame::OnQuit)
+    EVT_MENU(TYPES_ABOUT, MyFrame::OnAbout)

 END_EVENT_TABLE()
 
 // My frame constructor
 MyFrame::MyFrame(wxFrame *parent, const wxString& title,
 END_EVENT_TABLE()
 
 // 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, _T("Tests various wxWidgets types"),
+        _T("About Types"), wxYES_NO|wxCANCEL);

 
 

-  dialog.ShowModal();
+    dialog.ShowModal();

 }
 
 
 }