case WM_PAINT:
		hdc = BeginPaint(hWnd, &ps);
		transform(hdc);


		SelectObject(hdc, hBezier);

		for (i = 1; i< count-1; i++) {
			int xA = pt[i-1].x;
			int xB = pt[i].x;
			int xC = pt[i+1].x;
			int xD = pt[i+2].x;

			int yA = pt[i-1].y;
			int yB = pt[i].y;
			int yC = pt[i+1].y;
			int yD = pt[i+2].y;

			double a3 = (-xA+3*(xB-xC)+xD)/6.0;
			double b3 = (-yA+3*(yB-yC)+yD)/6.0;

			double a2 = (xA-2*xB+xC)/2.0;
			double b2 = (yA-2*yB+yC)/2.0;

			double a1 = (xC-xA)/2.0;
			double b1 = (yC-yA)/2.0;

			double a0 = (xA+4*xB+xC)/6.0;
			double b0 = (yA+4*yB+yC)/6.0;

			for (j = 0; j <= count; j++) {
				double t = (float)j/(float)count;
				double X = ((a3*t+a2)*t+a1)*t+a0;
				double Y = ((b3*t+b2)*t+b1)*t+b0;
				double first = 0;
				if (i==1 && j==0) {
					LPPOINT lppt = LPPOINT();
					MoveToEx(hdc, X, Y, lppt);
				}
				LineTo(hdc, X, Y);
			}
		}

		for (i = 0; i < count; i++) {
			SetRect(&rt, pt[i].x - MARK, pt[i].y - MARK, pt[i].x + MARK, pt[i].y + MARK);
			FillRect(hdc, &rt, hRect);
		}
		break;