internal void SetNativeLineCap(IntPtr handle)
 {
     if (handle == IntPtr.Zero)
     {
         throw new ArgumentNullException("handle");
     }
     this.nativeCap = new SafeCustomLineCapHandle(handle);
 }
        internal void SetNativeLineCap(IntPtr handle) {
            if (handle == IntPtr.Zero)
                throw new ArgumentNullException("handle");

            nativeCap = new SafeCustomLineCapHandle(handle);
        }