Question Need to use Resource Embedded font in Application

[tim8w]

I have a Font that I want my application to use. I have tried MANY suggestions on the web and have not found one that works. I tried embedding the file in the Application's Resources, but could never get that to work. I also tried to get ClickOnce to install the font for me, but also couldn't get that to work. Is this not something very commonly done? Anyway if anyone any suggestions, I would appreciate it.

 

[Skydiver]

You'll need to go into P/Invoke territory:

AddFontMemResourceEx function (wingdi.h) - Win32 apps

The AddFontMemResourceEx function adds the font resource from a memory image to the system.

learn.microsoft.com

 

[Skydiver]

The above is if you are using GDI.

Below is if you are using DirectWrite:

How to load font from resource using dwrite API?

I want to load a font from a compiled resource which is the program itself. I can load it using AddFontMemResourceEx when I was using GDI. However, direct 2D has it own Dwrite API which is not

stackoverflow.com

 

[tim8w]

I tried AddFontMemResourceEx but am having problems with the fontStream. It comes back null.

        [System.Runtime.InteropServices.DllImport("gdi32.dll")] private static extern IntPtr AddFontMemResourceEx(IntPtr pbFont, uint cbFont, IntPtr pdv, ref uint pcFonts);

            try
            {
                string resource = "LEDFont.ttf"; // specify embedded resource name

                // receive resource stream
                System.IO.Stream fontStream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream(resource);

                // create an unsafe memory block for the font data
                System.IntPtr data = System.Runtime.InteropServices.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
                System.Runtime.InteropServices.Marshal.Copy(fontdata, 0, data, (int)fontStream.Length);

                ///IMPORTANT line to register font in system
                uint cFonts = 0;
                AddFontMemResourceEx(data, (uint)fontdata.Length, IntPtr.Zero, ref cFonts);

                // pass the font to the font collection
                pFC.AddMemoryFont(data, (int)fontStream.Length);

                // close the resource stream
                fontStream.Close();
                // free up the unsafe memory
                System.Runtime.InteropServices.Marshal.FreeCoTaskMem(data);

                lblTaktTime.Font = new Font(pFC.Families[0], 60, FontStyle.Bold);
            }
            catch (Exception exp)
            {
            }

Any ideas?

 

[Skydiver]

That would suggest that the resource is not named what you think it is. E.g. Line 5 las the wrong value.