MFC编译出错，提示Invalidata() undeclared identifier

[acrobatyuer]

void CDrawView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_x=point.x;
	m_y=point.y;

	Invalidata();//'Invalidata' : undeclared identifier
	CView::OnLButtonDown(nFlags, point);
}

小弟在线急等。。。。

[zaodt]

Invalidate