使用WPF在C#中创建包含文本的图像并将其另存为.png

using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Imaging;

namespace WpfImageText
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void SaveImage_Click(object sender, RoutedEventArgs e)
        {
            RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap((int)ImageContainer.ActualWidth, (int)ImageContainer.ActualHeight, 96, 96, PixelFormats.Pbgra32);
            renderTargetBitmap.Render(ImageContainer);

            PngBitmapEncoder pngEncoder = new PngBitmapEncoder();
            pngEncoder.Frames.Add(BitmapFrame.Create(renderTargetBitmap));

            using (var fileStream = System.IO.File.Create("image.png"))
            {
                pngEncoder.Save(fileStream);
            }
        }
    }
}