System.Drawing.Graphics.initializeMatrix C# (CSharp) Method

        private void initializeMatrix(ref Matrix matrix, bool isFlipped)
        {
            if (!isFlipped)
            {
                //				matrix.Reset();
                //				matrix.Translate(0, boundingBox.Height, MatrixOrder.Append);
                //				matrix.Scale(1,-1, MatrixOrder.Append);
                matrix = new Matrix(
                    1, 0, 0, -1, 0, boundingBox.Height);

            }
            else {
                matrix.Reset();
            }

            // It looks like we really do not need to determin if it is flipped or not.
            // So far this following is working no matter which coordinate system is being used
            // on both Mac and iOS.
            // I will leave the previous commented out code there just in case.  When first implementing
            // DrawString the flipped coordinates were causing problems.  Now after implementing with
            // CoreText it seems to all be working.  Fingers Crossed.
            //			matrix = new Matrix(
            //				1, 0, 0, -1, 0, boundingBox.Height);
        }