如何在WPF中使用DrawThemeTextEx

        xmlns:winforms="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration">
    <Grid>
       <WindowsFormsHost>
            <winforms:WindowsFormsHost x:Name="windowsFormsHost" />
        </WindowsFormsHost>
    </Grid>
</Window>

using System;
using System.Drawing;
using System.Windows;
using System.Windows.Forms;
using System.Windows.Forms.Integration;
using System.Windows.Media;
using System.Windows.Media.Imaging;

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        // 创建一个自定义的Paint事件处理程序
        windowsFormsHost.Child = new Panel
        {
            Dock = DockStyle.Fill,
            Paint = DrawThemeTextEx
        };
    }

    private void DrawThemeTextEx(object sender, PaintEventArgs e)
    {
        // 创建一个Graphics对象
        Graphics graphics = e.Graphics;

        // 创建一个Rectangle对象，用于定义文本的位置和大小
        Rectangle rect = new Rectangle(10, 10, 200, 50);

        // 创建一个Font对象，用于定义文本的字体和大小
        Font font = new Font("Arial", 12);

        // 创建一个SolidBrush对象，用于定义文本的颜色
        SolidBrush brush = new SolidBrush(Color.Black);

        // 创建一个StringFormat对象，用于定义文本的格式
        StringFormat format = new StringFormat
        {
            Alignment = StringAlignment.Center,
            LineAlignment = StringAlignment.Center
        };

        // 使用DrawThemeTextEx函数绘制文本
        IntPtr hTheme = NativeMethods.OpenThemeData(IntPtr.Zero, "Button");
        NativeMethods.DrawThemeTextEx(hTheme, graphics.GetHdc(), 0, 0, "Hello, WPF!", -1, (uint)format.FormatFlags, ref rect, ref format);
        graphics.ReleaseHdc();
        NativeMethods.CloseThemeData(hTheme);

        // 释放资源
        font.Dispose();
        brush.Dispose();
        format.Dispose();
    }
}

public static class NativeMethods
{
    [DllImport("uxtheme.dll", CharSet = CharSet.Unicode)]
    public static extern IntPtr OpenThemeData(IntPtr hwnd, string pszClassList);

    [DllImport("uxtheme.dll", CharSet = CharSet.Unicode)]
    public static extern int DrawThemeTextEx(IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, string pszText, int iCharCount, uint dwFlags, ref Rectangle pRect, ref StringFormat pOptions);

    [DllImport("uxtheme.dll")]
    public static extern int CloseThemeData(IntPtr hTheme);
}