/** * <summary> * Draws an empty circle at a specified position. * <para> * </para> * </summary> * <param name="x"> * the distance from left of layer to the center of the circle, in pixels * </param> * <param name="y"> * the distance from top of layer to the center of the circle, in pixels * </param> * <param name="r"> * the radius of the circle, in pixels * </param> * <returns> * <c>0</c> if the call succeeds. * </returns> * <para> * On failure, throws an exception or returns a negative error code. * </para> */ public virtual int drawCircle(int x, int y, int r) { return(_objptr.drawCircle(x, y, r)); }