ImageArc -- draw a partial ellipse


int imagearc(int im, int cx, int cy, int w, int h, int s, int e, int col);

ImageArc draws a partial ellipse centered at cx, cy (top left is 0,0) in the image represented by im. w and h specifies the ellipse's width and height respectively while the start and end points are specified in degrees indicated by the s and e arguments.