Font Embedding to TextBox

I have successfully loaded a .ttf font. Now, how do I use it in a TextBox?

FILE: MainWindow.xaml.cs

Code:

---

namespace myNameSpace
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
                public MainWindow()
                {
                        InitializeComponent();
                        LoadFont();
                }

                [DllImport("gdi32.dll")]
                private static extern IntPtr AddFontMemResourceEx(IntPtr pbFont, uint cbFont, IntPtr pdv, [In] ref uint pcFonts);
                PrivateFontCollection mFontCollection = new PrivateFontCollection();
                private void LoadFont()
                {
                        // specify embedded resource name
                        string resource = "myNameSpace.fixedsys.ttf";
                        // receive resource stream
                        Stream fontStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resource);
                        //create an unsafe memory block for the data       
                        System.IntPtr data = Marshal.AllocCoTaskMem((int)fontStream.Length);       
                        //create a buffer to read in to       
                        Byte[] fontData = new Byte[fontStream.Length];       
                        //fetch the font program from the resource       
                        fontStream.Read(fontData, 0, (int)fontStream.Length);       
                        //copy the bytes to the unsafe memory block       
                        Marshal.Copy(fontData, 0, data, (int)fontStream.Length);         
                        // We HAVE to do this to register the font to the system (Weird .NET bug !)       
                        uint cFonts = 0;       
                        AddFontMemResourceEx(data, (uint)fontData.Length, IntPtr.Zero, ref cFonts);         
                        //pass the font to the font collection       
                        mFontCollection.AddMemoryFont(data, (int)fontStream.Length);
                        //close the resource stream
                        fontStream.Close();       
                        //free the unsafe memory       
                        Marshal.FreeCoTaskMem(data);
                }
        }
}

---

FILE: MainWindow.xaml

Code:

---

<Window x:Class="myNameSpace.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Hello World" Height="768" Width="1366" Loaded="Window_Loaded" Closed="Window_Closed">
    <Grid Background="Black">
       
                <TextBox
                        x:Name="OutputWindow_TEST"
                        TextWrapping="Wrap"
                        HorizontalScrollBarVisibility="Auto"
                        VerticalScrollBarVisibility="Auto"
                        Background="Black"
                        Foreground="White"
                        Width="338"
                />
        </Grid>
</Window>

---

So, in my "OutputWindow_TEST" textbox, how do I add my embedded font?

I type the "FontFamily" property of the textbox and all my system fonts show up as options, but not the one I embedded.

Thanks.

I'd say you need to assign a FontFamily from the Families property of your collection to your textblock's FontFamily property. You will get no Intellisense in XAML for something you will only have loaded at runtime.

Quote:

---

Originally Posted by nvoigt

I'd say you need to assign a FontFamily from the Families property of your collection to your textblock's FontFamily property. You will get no Intellisense in XAML for something you will only have loaded at runtime.

---

Okay, so I add:

Code:

---

this.myTextBox.FontFamily = mFontCollection.Families[0];

---

And get this error:
error CS0029: Cannot implicitly convert type 'System.Drawing.FontFamily' to 'System.Windows.Media.FontFamily'

When I debug mFontCollection.Families[0], sure enough, it contains:
Name:
((System.Drawing.Text.FontCollection)(mFontCollect ion)).Families[0].Name
Value:
"FixedsysTTF"

So I know it's getting loaded correctly.


Any ideas where I'm messing up?

Thanks.

If your font is known at compile-time, you may want to look at this MSDN page instead of loading it with an old windows forms method.