PythonWin dynamic toolbar

Hi All,
I'm trying to create a dynamic toolbar.
This function tries to create the toolbar and add a button to it.
It craches at tbctrl.SteBitma pSize(32,32)

What is wrong with it?

Thank you,
Lale


def OnCreateClient( self,context,ob j):
window.MDIChild Wnd.OnCreateCli ent(self,contex t,obj)
parent = self
style = win32con.WS_CHI LD | win32con.WS_VIS IBLE |
afxres.CBRS_SIZ E_DYNAMIC | afxres.CBRS_TOP | \
afxres.CBRS_TOO LTIPS | afxres.CBRS_FLY BY
self.toolbar = tb = win32ui.CreateT oolBar (parent, style)
tbctrl = tb.GetToolBarCt rl()
tbctrl.SetBitma pSize(32,32)
bmp = win32ui.CreateB itmap()
bmp.LoadBitmapF ile(open('impor timages.bmp','r '))
bmpIndex = tbctrl.AddBitma p(1,bmp)
tbctrl.AddStrin gs('rect\0point \0poligon\0')
tbutton = tbctrl.TBUTTON
tbutton[0]=(bmpIndex,868, win32con.TBSTAT E_ENABLED,
win32con.TBSTYL E_BUTTON,None,0 )
tbctrl.AddButto ns(1,tbutton)
tb.EnableDockin g(afxres.CBRS_A LIGN_ANY)
tb.SetWindowTex t("Test")
parent.EnableDo cking(afxres.CB RS_ALIGN_ANY)
parent.DockCont rolBar(tb)
print tbctrl.GetButto nCount()
return 1