Documents
im = wx.Image(image_stream)
bm = wx.Bitmap(im)
sb = wx.xrc.XRCCTRL(self.frame, 'name_in_xrc', 'wxStaticBitmap')
sb.SetBitmap(bm)
<object class="wxCheckBox" name="checkbox_id">
<size>200,50</size>
<label>CheckBoxItem</label>
<checked>1</checked>
</object>