wxWidgets Wizard sample runtime crash - c++

Question

The complete code is more than 400 line. You can find it here: http://hostcode.sourceforge.net/view/4122 or if you have wxwidgets installed then under WX_WIDGETS_ROOT\samples\wizard\wizard.cpp.
I tried to compile it but get
"error C2065: 'm_bitmap' : undeclared identifier" on line 122.
Then I commented that line and it compiles ok. But when I run it and select one of these menu commands:
File >> Run wizard modal
File >> Run wizard withour sizer
File >>
Run wizard modeless
it goes to MyWizard constructor and crashes on m_page1 = new... line.
MyWizard::MyWizard(wxFrame *frame, bool useSizer)
: wxWizard(frame,wxID_ANY,_T("Absolutely Useless Wizard"),
wxBitmap(wiztest_xpm),wxDefaultPosition,
wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
// a wizard page may be either an object of predefined class
m_page1 = new wxWizardPageSimple(this);<---------------- HERE
and gave this error:
Unhandled exception at 0x004425ec in wizard.exe: 0xC0000005: Access
violation reading location 0xcdcdcdd1.
I checked in debugger and saw that it goes to
void wxWizardPage::Init()
{
m_bitmap = wxNullBitmap;<--- HERE
}
and then a few inner calls later trying to access m_refData->m_count where m_refData contains garbage m_refData = 0xcdcdcdcd {m_count=??? } and then crashed.
void wxObject::UnRef()
{
if ( m_refData )
{
wxASSERT_MSG( m_refData->m_count > 0, _T("invalid ref data count") );<----- HERE
if ( --m_refData->m_count == 0 )
delete m_refData;
m_refData = NULL;
}
}
Here is call stack if it will be useful:
wizard.exe!wxObject::UnRef() Line 346 + 0x6 bytes C++
wizard.exe!wxObject::Ref(const wxObject & clone) Line 335 C++
wizard.exe!wxObject::operator=(const wxObject & other) Line 428 C++
wizard.exe!wxGDIObject::operator=(const wxGDIObject & __that) + 0x13
bytes C++ wizard.exe!wxGDIImage::operator=(const wxGDIImage &
__that) + 0x13 bytes C++ wizard.exe!wxBitmap::operator=(const wxBitmap & __that) + 0x13 bytes C++
wizard.exe!wxWizardPage::Init() Line 126 C++ wizard.exe!wxWizardPage::wxWizardPage() Line 50 + 0x46 bytes C++
wizard.exe!wxWizardPageSimple::wxWizardPageSimple(wxWizard * parent,
wxWizardPage * prev, wxWizardPage * next, const wxBitmap & bitmap,
const char * resource) Line 113 + 0x2e bytes C++
wizard.exe!MyWizard::MyWizard(wxFrame * frame, bool useSizer) Line
376 + 0x31 bytes C++