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从动态加载的DLL加载图像

dll image wpf c#

0

JBryanB · 技术社区 · 7 年前

我的目标是在WPF窗口的overridedonrender方法中绘制图像“someImage.png”,它是嵌入的资源:

protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
    base.OnRender(drawingContext);            
    drawingContext.DrawImage(ImageSource, Rect);            
}

public BitmapSource GetSourceForOnRender()
{
    System.Reflection.Assembly myAssembly = System.Reflection.Assembly.GetExecutingAssembly();
    Stream myStream = myAssembly.GetManifestResourceStream("KisserConsole.someImage.png");

    // What to do now?

    return //BitmapSource

}

0 回复 | 直到 10 年前

1

9

Clemens 11 年前

可以通过设置流的位图图像 StreamSource 属性:

public BitmapSource GetSourceForOnRender()
{
    var assembly = System.Reflection.Assembly.GetExecutingAssembly();
    var bitmap = new BitmapImage();

    using (var stream =
        assembly.GetManifestResourceStream("KisserConsole.someImage.png"))
    {
        bitmap.BeginInit();
        bitmap.StreamSource = stream;
        bitmap.CacheOption = BitmapCacheOption.OnLoad;
        bitmap.EndInit();
    }

    return bitmap;    
}

也就是说,通常会从 Resource File Pack URI

new BitmapImage(new Uri(
    "pack://application:,,,/KisserConsole.someImage.png"));

2

0

Setyo N 7 年前

您可以尝试使用:

Uri uri = new Uri( $"pack://application:,,,/YourAssemblyName;component/Resources/images/photo.png", UriKind.Absolute );

BitmapImage bitmap = new BitmapImage( uri );