void CPenBallView::UpdateDC()
{
CPenBallDoc* pDoc = GetDocument();
int x = pDoc->ball.Position.x + pDoc->ball.Vx;
int y = pDoc->ball.Position.y + pDoc->ball.Vy;
void CPenBallView::UpdateDC()
{
CPenBallDoc* pDoc = GetDocument();
int x = pDoc->ball.Position.x + pDoc->ball.Vx;
int y = pDoc->ball.Position.y + pDoc->ball.Vy;