m_canvas = new FortyCanvas(this, 0, 0, 400, 400);
wxLayoutConstraints* constr = new wxLayoutConstraints;
constr->left.SameAs(this, wxLeft);
m_canvas = new FortyCanvas(this, 0, 0, 400, 400);
wxLayoutConstraints* constr = new wxLayoutConstraints;
constr->left.SameAs(this, wxLeft);