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C#:在文本框上使用嵌入式字体

embedded-fonts textbox fonts winforms c#

Led · 技术社区 · 16 年前

我在windows窗体应用程序中嵌入一个字体作为嵌入资源,并希望在 TextBox .

在…的帮助下 AddMemoryFont() 说我必须将兼容文本呈现设置为 true

在Program.cs中,我明确指出:

Application.SetCompatibleTextRenderingDefault(true);

那为什么它不起作用呢?有人知道如何设置文本框的自定义字体吗?

1 回复 | 直到 5 年前

Led 16 年前

好吧,多亏了互联网和谷歌我才弄明白。

为便于将来参考,如果有人遇到此问题,解决方法是: 将嵌入字体作为流获取后,在调用AddMemoryFont之前, 你必须打电话给AddFontMemResourceEx!

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

然后:

            //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);

普雷斯托,你就可以使用这种字体了。如果没有AddFontMemResourceEx,它将无法工作。

PPr 6 年前

在c#Windows应用程序中嵌入字体

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

    PrivateFontCollection pFC = new PrivateFontCollection();

        try
        {
            string[] resource = { "newFont-Bold.ttf", "newFont-Regular.ttf" }; // specify embedded resource name

            foreach (var item in resource)
            {
                // receive resource stream
                Stream fontStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(item);

                // 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);

                ///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
                Marshal.FreeCoTaskMem(data);
            }
        }
        catch (Exception exp)
        {
            Log.Error(exp);
        }

        return pFC;