rendertargetbitmap

I have an application relying on Deep zoom images (convertion from a PNG to a pyramid of JPGs in various scale) which we use DeepZoomTools.dll for. This is relying on PresentationCore.dll and has been working fine for years. After the rollout of KB4040972 and KB4040973, the conversion from PNG to JPG generates (depending on coordinates) black images instead of the image it should contain. If the below code is run in a console or desktop app, it works. It ONLY doesn't work if run under high privilege SYSTEM account (e.g. from Task scheduler). I have created a project to reproduce the issue,

RenderTargetBitmap removes downgrades a RichtextBox's TextRenderingMode to GreyScale. So a captured PNG looks poor quality and doesnt match the WPF control If I use WINDOWS ALT+PRINT SCREEN, the text is captured perfectly. So how can I render the text control to the same quality as ALT+PRINT SCREEN. Any advice would seriously be appreciated All the best You can use the same technique to render your window into the bitmap as windows using when taking a screen shot with Alt + Print Screen . The idea is to get a window handle and then render it to a bitmap using BitBlt system call. Below is an

I want to use RenderTargetBitmap to render a UserControl to a bitmap without having to write the XAML for it. When I do this I get a blank image, am I missing a crucial step? ValTool.Controls.VideoFisheyeOverlayControl vfoc = new Controls.VideoFisheyeOverlayControl(); vfoc.Width = (int)this.VideoContainer.ActualWidth; vfoc.Height = (int)this.VideoContainer.ActualHeight; vfoc.FieldsOfView=this.FieldsOfView; vfoc.CountLines = this.CountLines; vfoc.UpdateLayout(); vfoc.InvalidateVisual(); RenderTargetBitmap visual = new RenderTargetBitmap((int)this.VideoContainer.ActualWidth, (int)this

I'm trying to save an UIElement created programmatically in a JPG/PNG/BMP image in a Windows Phone 8.1 (C#) application. I'm using the class RenderTargetBitmap using the method RenderAsync() but it only works with UI elements created in the XAML code. When I use it on UI elements created directly in C# I have this exception: "System.ArgumentException (Value does not fall within the expected range.)" Am I doing something wrong or this class doesn't allow rendering of UIElement(s) created programmatically? Is there any way to do this on Windows Phone 8.1? Thank you! Here's the code I use:

I'm trying to convert an XPS with WPF. The idea is that these images can be loaded with silverlight 4, for this I am using the following code: // XPS Document XpsDocument xpsDoc = new XpsDocument(xpsFileName, System.IO.FileAccess.Read); FixedDocumentSequence docSeq = xpsDoc.GetFixedDocumentSequence(); // The number of pages PageCount = docSeq.References[0].GetDocument(false).Pages.Count; DocumentPage sizePage = docSeq.DocumentPaginator.GetPage(0); PageHeight = sizePage.Size.Height; PageWidth = sizePage.Size.Width; // Scale dimensions from 96 dpi to 600 dpi. double scale = 300/ 96; // Convert a

RenderTargetBitmap removes downgrades a RichtextBox's TextRenderingMode to GreyScale. So a captured PNG looks poor quality and doesnt match the WPF control If I use WINDOWS ALT+PRINT SCREEN, the text is captured perfectly. So how can I render the text control to the same quality as ALT+PRINT SCREEN. Any advice would seriously be appreciated All the best You can use the same technique to render your window into the bitmap as windows using when taking a screen shot with Alt + Print Screen . The idea is to get a window handle and then render it to a bitmap using BitBlt system call. Below is an

I have a RenderTargetBitmap , I need to convert it to BitmapImage . Please check the code below. RenderTargetBitmap bitMap = getRenderTargetBitmap(); Image image = new Image();// This is a Image image.Source = bitMap; In the above code I have used Image.Now I need to use a BitmapImage. How can I do this? RenderTargetBitmap bitMap = getRenderTargetBitmap(); BitmapImage image = new BitmapImage();// This is a BitmapImage // how to set bitMap as source of BitmapImage ? Although it doesn't seem to be necessary to convert a RenderTargetBitmap into a BitmapImage , you could easily encode the