WebJul 22, 2014 · In every practical situation it should be sufficient to cast to BitmapSource instead (which is the common base class of BitmapImage and BitmapFrame): var bitmap = _window.Icon as BitmapSource; BitmapSource provides all relevant bitmap properties, like PixelWidth, PixelHeigth, DpiX, DpiY, Format, etc. Web你能告诉我如何在wpf c#应用程序和png格式的资源图像的情况下,以编程方式确保转换为灰度后的透明度吗? 我创建了一个最小工作项目来测试,你可以在这里找到它:Github GrayTransparencyTest. 编辑2:Github存储库已经更新为用户“Just Answer the Question”和“Clemens”的前两个解决方案。
BitmapImage Class (System.Windows.Media.Imaging)
WebDec 10, 2016 · BitmapImage directly. But you can use a WriteableBitmap instead of a BitmapImage. Then you can get pixel data via its PixelBuffer property. After that, you could use CanvasBitmap.CreateFromBytes() method to create CanvasBitmap. Then using this CanvasBitmap object as parameter to call CanvasDrawingSession.DrawImage() method. WebApr 13, 2024 · BitmapImage 是 WPF 中用于表示位图图像的类,它派生自 System.Windows.Media.Imaging.BitmapSource 类。 BeginInit() 和 EndInit() 方法:这两个方法用于在代码中设置 BitmapImage 对象的属性,例如 UriSource 属性。 由于在 WPF 中,大部分属性都是依赖属性(Dependency Property),需要通过依赖属性系统进行注册 … shannon blumer springfield mo
BitmapFrame Class (System.Windows.Media.Imaging)
WebMay 10, 2013 · Since you are asking about BitmapSource and your question is tagged with WPF, here's a way to avoid using System.Drawing.Bitmap: Imaging.CreateBitmapSourceFromHBitmap (imagePointer, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions ()); You'll need to use System.Windows.Interop. … WebMay 18, 2012 · So I create an image by ANY color I need and apply opacity for it. BitmapSource bs = CreateBitmapSource (GetBackgroundColorValue ()); // and here I use method of @StaWho CreateBitmapSource () ImageBrush ib2 = new ImageBrush (bs); ib2.Opacity = Opacity; ib2.Stretch = Stretch.Fill; RootGrid.Background = ib2; c#. http://xunbibao.cn/article/58006.html polyseal ez sealer where to buy