How do I embed my own fonts in a WinForms app?
I want to embed fonts in my WinForms application so that I don't have to worry about them being installed on the machine. I've searched a bit on the MSDN site and found a few hints about using native Windows API calls, for instance Michael Caplan's (sp?) tutorial linked to by Scott Hanselman. Now, do I really have to go through all that trouble? Can't I just use the resource part of my app?
If not I'll probably go the installing route. In that case, can I do that programmatically? By just copying the font file to the Windows\Fonts folder?
I am aware of licensing issues.
This is what worked for me in VS 2013, without having to use an unsafe block.
Embed the resource
- Double-click Resources.resx, and in the toolbar for the designer click Add Resource/Add Existing File and select your .ttf file
- In your solution explorer, right-click your .ttf file (now in a Resources folder) and go to Properties. Set the Build Action to "Embedded Resource"
Load the font into memory
Add
using System.Drawing.Text;
to your Form1.cs file-
Add code above and inside your default constructor to create the font in memory (without using "unsafe" as other examples have shown). Below is my entire Form1.cs:
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Reflection; using System.Drawing.Text; namespace WindowsFormsApplication1 { public partial class Form1 : Form { [System.Runtime.InteropServices.DllImport("gdi32.dll")] private static extern IntPtr AddFontMemResourceEx(IntPtr pbFont, uint cbFont, IntPtr pdv, [System.Runtime.InteropServices.In] ref uint pcFonts); private PrivateFontCollection fonts = new PrivateFontCollection(); Font myFont; public Form1() { InitializeComponent(); byte[] fontData = Properties.Resources.MyFontName; IntPtr fontPtr = System.Runtime.InteropServices.Marshal.AllocCoTaskMem(fontData.Length); System.Runtime.InteropServices.Marshal.Copy(fontData, 0, fontPtr, fontData.Length); uint dummy = 0; fonts.AddMemoryFont(fontPtr, Properties.Resources.MyFontName.Length); AddFontMemResourceEx(fontPtr, (uint)Properties.Resources.MyFontName.Length, IntPtr.Zero, ref dummy); System.Runtime.InteropServices.Marshal.FreeCoTaskMem(fontPtr); myFont = new Font(fonts.Families[0], 16.0F); } } }
Use your font
-
Add a label to your main form, and add a load event to set the font in Form1.cs:
private void Form1_Load(object sender, EventArgs e) { label1.Font = myFont; }
// specify embedded resource name
string resource = "embedded_font.PAGAP___.TTF";
// receive resource stream
Stream fontStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resource);
// create an unsafe memory block for the font data
System.IntPtr data = Marshal.AllocCoTaskMem((int)fontStream.Length);
// create a buffer to read in to
byte[] fontdata = new byte[fontStream.Length];
// read the font data 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);
// pass the font to the font collection
private_fonts.AddMemoryFont(data, (int)fontStream.Length);
// close the resource stream
fontStream.Close();
// free up the unsafe memory
Marshal.FreeCoTaskMem(data);
I dragged and dropped a randomly downloaded font into my resources and this worked. Uses a file though. I guess you can use this as well to install fonts ?
public Form1()
{
string filename = @"C:\lady.gaga";
File.WriteAllBytes(filename, Resources.KBREINDEERGAMES);
PrivateFontCollection pfc = new PrivateFontCollection();
pfc.AddFontFile(filename);
Label label = new Label();
label.AutoSize = true;
label.Font = new Font(pfc.Families[0], 16);
label.Text = "hello world";
Controls.Add(label);
}