Question

因此，在我从DLL中取出图像并将其放入图像控件后，它就是一个BitmapImage。要将其打包回dll，必须将其转换回图像。如何将其转换回图像，如何将其重新打包回到dll中？这都是用c＃编写的wpf。

private void compileDLL_Click(object sender, RoutedEventArgs e)
    {
        string sourcePath = Directory.GetCurrentDirectory() + "\\PCAngelResources.dll";
        //destination path
        string dllname = textBox1.Text + "_PCAngelResources.dll";
        string targetPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
        string destFile = System.IO.Path.Combine(targetPath, dllname);
        System.IO.File.Copy(sourcePath, destFile, true);

        //lstImages = new Dictionary<string, Bitmap>();
        //string filename = "PCAngelResources.dll";
        Assembly pcangdll = Assembly.LoadFile(sourcePath);
        System.Globalization.CultureInfo culture = Thread.CurrentThread.CurrentCulture;
        ResourceManager rm = new ResourceManager("PCAngelResources.DynResources", pcangdll);
        rs = rm.GetResourceSet(culture, true, true);
        ResourceWriter writer = new ResourceWriter(destFile);

        foreach (DictionaryEntry resource in rs)
        {
            resources.Add((string)resource.Key);
            if (resource.Key.Equals("Branding") || resource.Key.Equals("Advertising"))
            {
                if (resource.Key.Equals("Branding"))
                {
                    writer.AddResource("Branding", image5.Source);
                    //System.Object obj = rm.GetObject((string)resource.Key);
                    //lstImages.Add((string)resource.Key, (Bitmap)obj);
                }
                else
                    if (resource.Key.Equals("Advertising"))
                    {
                        writer.AddResource("Advertising", image6.Source);
                    }
            }
        }
        writer.Generate();
        System.Windows.MessageBox.Show("Done", "Process Finished", MessageBoxButton.OK, MessageBoxImage.Asterisk, MessageBoxResult.OK);
    }

当我执行writer.Generate（）来创建新的dll时，我收到以下错误： mscorlib.dll中发生未处理的“System.Runtime.Serialization.SerializationException”类型异常

其他信息：在Assembly'DisplayCore，Version = 3.0.0.0，Culture = neutral，PublicKeyToken = 31bf3856ad364e35'中键入'System.Windows.Media.Imaging.BitmapFrameDecode'未标记为可序列化。

Answer 1

我不知道你的意思是“将它重新打包回DLL”但是有一种简单的方法可以将WPF图像从BitmapSource转换回System.Drawing.Image。以下方法实现了：

/// <summary>
/// Converts a WPF bitmap to a System.Drawing.Bitmap
/// </summary>
/// <param name="wpfBitmap">BitmapSource to convert</param>
/// <returns>A GDI Bitmap</returns>
public static System.Drawing.Bitmap GdiBitmapFromWpfBitmap(BitmapSource wpfBitmap)
{
    PngBitmapEncoder encoder = new PngBitmapEncoder();
    encoder.Frames.Add(BitmapFrame.Create(wpfBitmap));
    MemoryStream imageStream = new MemoryStream();
    encoder.Save(imageStream);
    System.Drawing.Bitmap gdiBitmap = new System.Drawing.Bitmap(imageStream);

    imageStream.Close();
    imageStream.Dispose();

    return gdiBitmap;
}

将位图转换为图像

1 个答案: