Problem drawing with sharpdx

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C#

DirectX

SharpDX

I am trying to draw boxes, triangles and text using SharpDx. The documentation seems very vague for me, and through several examples I came up with a code that I cannot understand why it does not work.

What I have tried:

My code so far is:

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SharpDX.Direct3D9;
using SharpDX.Mathematics.Interop;
using SharpDX.Windows;
using Device = SharpDX.Direct2D1.Device;
using Font = SharpDX.Direct3D9.Font;

namespace SharpDxDrawing
{
    class Program
    {
        static void Main(string[] args)
        {
            var form = new RenderForm("SharpDX - Direct3D9 Font Sample");
            int width = form.ClientSize.Width;
            int height = form.ClientSize.Height;
            var device = new SharpDX.Direct3D9.Device(new Direct3D(), 0, DeviceType.Hardware, form.Handle, CreateFlags.HardwareVertexProcessing, new PresentParameters(width, height) { PresentationInterval = PresentInterval.One });

            // Initialize the Font
            FontDescription fontDescription = new FontDescription()
            {
                Height = 72,
                Italic = false,
                CharacterSet = FontCharacterSet.Ansi,
                FaceName = "Arial",
                MipLevels = 0,
                OutputPrecision = FontPrecision.TrueType,
                PitchAndFamily = FontPitchAndFamily.Default,
                Quality = FontQuality.ClearType,
                Weight = FontWeight.Bold
            };



            var font = new Font(device, fontDescription);

            var displayText = "Direct3D9 Text!";

            // Measure the text to display
            var fontDimension = font.MeasureText(null, displayText, new RawRectangle(0, 0, width, height), FontDrawFlags.Center | FontDrawFlags.VerticalCenter);

            int xDir = 1;
            int yDir = 1;

            RenderLoop.Run(form, () =>
            {
                RawColorBGRA red;
                red.R = 255;
                red.G = 0;
                red.B = 0;
                red.A = 1;

                RawColorBGRA black;
                black.R = 1;
                black.G = 1;
                black.B = 1;
                black.A = 1;

                device.Clear(ClearFlags.Target, black, 1.0f, 0);
                device.BeginScene();

                // Make the text boucing on the screen limits
                if ((fontDimension.Right + xDir) > width)
                    xDir = -1;
                else if ((fontDimension.Left + xDir) <= 0)
                    xDir = 1;

                if ((fontDimension.Bottom + yDir) > height)
                    yDir = -1;
                else if ((fontDimension.Top + yDir) <= 0)
                    yDir = 1;

                fontDimension.Left += (int)xDir;
                fontDimension.Top += (int)yDir;
                fontDimension.Bottom += (int)yDir;
                fontDimension.Right += (int)xDir;

                // Draw the text
                font.DrawText(null, displayText, fontDimension, FontDrawFlags.Center | FontDrawFlags.VerticalCenter, red);

                device.EndScene();
                device.Present();
            });
        }
    }
}

The output is just a black window (which is expected), but I do not get my text drawn in there.