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Questions tagged [rendertargetbitmap]

The RenderTargetBitmap class, part of the .NET Framework (from version 3.0), converts a System.Windows.Media.Visual object into a bitmap.

The RenderTargetBitmap class (System.Windows.Media.Imaging.RenderTargetBitmap) converts a Visual (System.Windows.Media.Visual) object into a bitmap.

It can be used for example to render text as an image.

Support of RenderTargetBitmap was added to version 3.0 of the .NET Framework.

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How should RenderTargetBitmap be used?

In a Windows Universal App (WinRT) application, I am trying to capture a bitmap image of the current page (or a portion of it). A google search indicated that I should use the class Windows::UI::Xaml::Media::Imaging::RenderTargetBitmap (more…
A. V.
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Convert a RenderTargetBitmap to BitmapImage

How can I convert a RenderTargetBitmap to BitmapImage in C# XAML, Windows 8.1? I tried // rendered is the RenderTargetBitmap BitmapImage img = new BitmapImage(); InMemoryRandomAccessStream randomAccessStream = new…
Bassem Wissa
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Different result when using RenderTargetBitmap

I have a grid (wpf) and want to save the grid as an image. The grid name is gridPrintPanel (WxH: 1800x1200). I tried to use RenderTargetBitmap to get data and save as a file: string tempFile = @"D:\temp.png"; RenderTargetBitmap renderTargetBitmap =…
Voldemort
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GifBitmapEncoder and RenderTargetBitmap creates an empty gif

I am attempting to create a gif by rendering a canvas and animation. However, the gif is always empty. Is there something special that you must do with the canvas to render it? Canvas canvas = this.MainCanvas; int height; int…
Roger
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BackgroundTask & XamlRenderingBackgroundTask & RenderTargetBitmap

im developing an Live Tile APP to show the current Network State on the Live Tile. I already have a working XamlRenderingBackgroundTask, i can load Custom Tile Templates from XML files and i Render it with a RenderTargetBitmap to a PNG file. But if…
user1442727
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Saving Canvas to BMP only for the desired Canvas Size

I am having a canvas with different objects in it, the can be moved around .. Then i want to save the canvas to an BMP or PNG .. no problem, it works. But if there is some object outside of the canvas, the output image will be with the desired…
slaesh
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How to present FormattedText with RenderTargetBitmap in an Image?

I can't find the answer on Google. I have many strings to be presented on a canvas. Each string will be created using the FormattedText() method within a string converter called from an ItemsControl. The problem with the code is that it needs a…
Alan Wayne
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WinRT RenderTargetBitmap seems not to obey transforms

I'm trying to render some UIElements to a RenderTargetBitmap. I have an Image, that is moved around the base Element using a TranslateTransform. When I use RenderTargetTransform.RenderAsync, the Image is rendered without the transform. I tried using…
BalintN
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HowTo Get Rendered Image from WPF Image Control

Each WPF Image Control has RenderTransform Property that sets Scale, Skew, Rotate and many more Transformation to Images. After Calling RenderTransform Property, How to get Rendered Image into the BitmapImage or RenderTargetBitmap Class or Any other…
GiGatR00n
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How to convert DrawingVisual to Bitmap in WPF C#

I'm using the following code to draw text on DrawingVisual. I've heard that you can use RenderTargetBitmap to convert this to Bitmap to have better performance. public class ModelBeamSectionNamesInPlan : UIElement { private readonly…
Vahid
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WPF Snapshot of visible area ScrollViewer

I know how to make a snapshot in WPF. draggableObject = new Image(); AssociatedObjectParent.Children.Add(draggableObject); Grid panel = AssociatedObject as Grid; draggableObject.Height = panel.ActualHeight; draggableObject.Width =…
Totumus Maximus
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WPF FormattedText randomly disappears in high resolution images

I have the requirement to create 600 DPI "trifold" images, which have the dimensions of 25.5"x11" (three times the size of a Letter page). To do so, I’m using WPF Imaging through the DrawingVisual, DrawingContext, and RenderTargetBitmap classes. …
rossbeehler
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RenderTargetBitmap and Viewport3D rendering margin outside the ViewPort3D

Odd problem, but I found that the RenderTargetBitmap function is rendering the margin to the left of the ViewPort3D. When I save the bitmap (PNG in this case), there's a gap on the left hand side of the final image and the right side is chopped off…
MC9000
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RenderToBitmap trouble in WPF

Actually, I have to print the view from a Viewport3D, obviously, I use a RenderTargetBitmap. The problem is that if the resolution of the rendered image got high, some triangles of my scene don't appear on my final image. For example, my viewport…
Guillaume Boitel
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Saving Windows.Media.Drawing with BmpBitmapEncoder black image - how to remove alpha?

I'm using SVG# (http://sharpvectors.codeplex.com/), to batch convert SVG files to other formats. The SVG images being converted are black line drawings with no background. I've little experience with WPF or the System.Windows.Media namespace, so…
Jack
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