windows系统下，如何在C#程序中自动安装字体

要在Windows系统下自动安装字体，可以在C#程序中使用System.Drawing.Text命名空间中的PrivateFontCollection和InstalledFontCollection类来实现。

具体步骤如下：

1. 创建一个PrivateFontCollection对象，并使用AddFontFile方法向其中添加字体文件路径：

using System.Drawing.Text;

PrivateFontCollection pfc = new PrivateFontCollection();
pfc.AddFontFile("C:\\Fonts\\example.ttf");

1. 将字体添加到系统中：

int exitCode;
System.Diagnostics.ProcessStartInfo processStartInfo = new System.Diagnostics.ProcessStartInfo();
processStartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
processStartInfo.FileName = "cmd.exe";
processStartInfo.Arguments = "/C copy \"" + "C:\\Fonts\\example.ttf" + "\" \"%WINDIR%\\Fonts\"";
System.Diagnostics.Process process = System.Diagnostics.Process.Start(processStartInfo);
process.WaitForExit();
exitCode = process.ExitCode;
process.Close();

这里的字体文件路径是"C:\Fonts\example.ttf"，可以根据实际情况，修改为你想要安装的字体文件路径。

1. 确认字体是否已经添加到系统中：

InstalledFontCollection installedFontCollection = new InstalledFontCollection();
FontFamily[] fontFamilies = installedFontCollection.Families;
bool fontInstalled = false;
foreach (FontFamily font in fontFamilies)
{
   if (font.Name.Equals("Example Font"))
   {
      fontInstalled = true;
      break;
   }
}
if (fontInstalled)
{
   Console.WriteLine("Font installed successfully.");
}
else
{
   Console.WriteLine("Font installation failed.");
}

这里的字体名称是"Example Font"，根据实际情况，可以修改为你想要安装的字体的名称。

示例1：将Arial字体添加到系统中

PrivateFontCollection pfc = new PrivateFontCollection();
pfc.AddFontFile("C:\\Fonts\\Arial.ttf");

int exitCode;
System.Diagnostics.ProcessStartInfo processStartInfo = new System.Diagnostics.ProcessStartInfo();
processStartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
processStartInfo.FileName = "cmd.exe";
processStartInfo.Arguments = "/C copy \"" + "C:\\Fonts\\Arial.ttf" + "\" \"%WINDIR%\\Fonts\"";
System.Diagnostics.Process process = System.Diagnostics.Process.Start(processStartInfo);
process.WaitForExit();
exitCode = process.ExitCode;
process.Close();

InstalledFontCollection installedFontCollection = new InstalledFontCollection();
FontFamily[] fontFamilies = installedFontCollection.Families;
bool fontInstalled = false;
foreach (FontFamily font in fontFamilies)
{
   if (font.Name.Equals("Arial"))
   {
      fontInstalled = true;
      break;
   }
}
if (fontInstalled)
{
   Console.WriteLine("Arial font installed successfully.");
}
else
{
   Console.WriteLine("Arial font installation failed.");
}

示例2：将楷体添加到系统中

PrivateFontCollection pfc = new PrivateFontCollection();
pfc.AddFontFile("C:\\Fonts\\KaiTi.ttf");

int exitCode;
System.Diagnostics.ProcessStartInfo processStartInfo = new System.Diagnostics.ProcessStartInfo();
processStartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
processStartInfo.FileName = "cmd.exe";
processStartInfo.Arguments = "/C copy \"" + "C:\\Fonts\\KaiTi.ttf" + "\" \"%WINDIR%\\Fonts\"";
System.Diagnostics.Process process = System.Diagnostics.Process.Start(processStartInfo);
process.WaitForExit();
exitCode = process.ExitCode;
process.Close();

InstalledFontCollection installedFontCollection = new InstalledFontCollection();
FontFamily[] fontFamilies = installedFontCollection.Families;
bool fontInstalled = false;
foreach (FontFamily font in fontFamilies)
{
   if (font.Name.Equals("楷体"))
   {
      fontInstalled = true;
      break;
   }
}
if (fontInstalled)
{
   Console.WriteLine("KaiTi font installed successfully.");
}
else
{
   Console.WriteLine("KaiTi font installation failed.");
}