Delegate draw_quadratic_to_func_t
public delegate void draw_quadratic_to_func_t(IntPtr dfuncs, IntPtr drawData, IntPtr st, float controlX, float controlY, float toX, float toY, IntPtr userData)
public delegate void draw_quadratic_to_func_t(IntPtr dfuncs, IntPtr drawData, IntPtr st, float controlX, float controlY, float toX, float toY, IntPtr userData)