gc.drawString(GraphicsExample.getResourceString("Quadratic"), 0, -50, true);
path = new Path(device);
path.quadTo(200 + quadDiffX, 150 + quadDiffY, 400 + quadEndDiffX, 0 + quadEndDiffY);
gc.drawPath(path);
path.dispose();
gc.setTransform(null);
gc.setForeground(device.getSystemColor(SWT.COLOR_GRAY));
gc.drawRectangle(quadHndl.x + (int) quadXPos, quadHndl.y + (int) quadYPos, quadHndl.width, quadHndl.height);
gc.drawRectangle(quadEndHndl.x + (int) quadXPos, quadEndHndl.y + (int) quadYPos, quadEndHndl.width,