反比例函数图象
float rota = 0.0f;
float zrota = 1.0f;
int Render()
{
if(rota > 10.0f || rota < -60.0f){
zrota = -zrota;
}
Graphics graphics(hdc);
GraphicsPath path;
Pen pen(Color(255,0,255,0),1);
SolidBrush sBrs(Color(255,0,0,0));
Brush *brs = sBrs.Clone();
Point p[] = {Point(100,100),
Point(100,200),Point(200,200),
Point(200,200)};
Point p2[] = {Point(0,200),
Point(100,200),Point(100,300),
Point(100,300)};
path.AddBeziers(p,4);
path.AddBeziers(p2,4);
graphics.RotateTransform(-rota);
graphics.TranslateTransform(600, 50);
graphics.DrawPath(&pen,&path);
graphics.FillRectangle(brs,Rect(0,0,300,100));
graphics.FillRectangle(brs,Rect(200,100,100,100));
//InvalidateRect(hWnd,&rect,true);
rota+= zrota;
Sleep(1);
return 0;
}