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.
rendertargetbitmap
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WPF, ListView. RenderTargetBitmap - how to render whole ListView, not limited to screen
I have ListView, which displays some pictures. Not all pictures are visible on screen (in Window). I want to make something like 'contact sheet' - all pictures.
I got ScrollViewer from ListView, and ...
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Problem Creating png image of TextBlock using RenderTargetBitmap in WPF
When using RenderTargetBitmap to generate a PNG file from a TextBlock that is a child of a Canvas, the text is stretched to match the width of the TextBlock. The TextBlock has a TextAlignment set to '...
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How do I get a Visual (e.g. a UserControl) to be ready for copying by a RenderTargetBitmap?
The question has now been answered in a comment.
Original question:
The following is not enough:
this.Background = Brushes.Yellow;
RenderTargetBitmap bmp = new RenderTargetBitmap(...);
Measure(...);
...
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JpegBitmapEncoder / RenderTargetBitmap - excessive sharpening since .net 2 vs 4.7.2
I've been working on migrating legacy ASP.Net/C# system to Azure.
Initially just changing the minimal amount possible, but part of that is moving to updated .Net framework (2/3/3.5 => 4.7+)
Part of ...
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UWP - Use RenderTargetBitmap and only capture the visual area
I want to use RenderTargetBitmap to just capture the visual area in UWP app.
But the result is to capture the full element image in canvas that include offscreen's part.
This is my application Image.
...
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UWP RenderTargetBitmap.RenderAsync Hangs
I wrote a function to rasterize stroke data from an InkCanvas, but for some reason renderBMP.RenderAsync(...) hangs indefinitely. Any advice?
RenderTargetBitmap rasterizePage(int pageNumber) {
...
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Cancel long running render operation in WPF
Is there any way to cancel a possibly long running render operation in WPF?
In my case, I want to render a complex control (in a non-UI-thread) to a bitmap.
var bitmap = new RenderTargetBitmap((int)...
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While converting the circle or ellipse element to the image using the RenderTargetBitmap gets blank image
Description:
Need to save the specific circular portion of the image using the RenderTargetBitmap gets blank image.
Steps to reproduce:
Load the image control with the image.
Save the image source ...
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How can I draw a Polyline onto an Image (WPF)
I've tried a few different approaches to this, but can't seem to get a combination that works.
Creating WPF app in C#, Visual Studio.
System.Windows.Shapes.Polyline works really nicely to draw into a ...
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How to capture the rotated image to stream?
I am using the UWP image control.
I have rotated the image to 45 degrees by applying the Rotate transform(Angle = 45) now I want to convert the rendered rotated image to stream. So I have tried the ...
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RenderTargetBitmap using a PngBitmapEncoder is generating blank images on a virtual machine when there is no display, Windows 10 Version 1903
Our .NET application has the ability to generate .png files which are screenshots of a WPF Canvas.
This can be triggered from a client and handled by another of our applications (essentially something ...
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Is there any possible to convert the UI elements into multiple images(UWP)
I try to save the UI elements into an image file. but we have More UI elements(like 100 list of rows). So the image quality is very poor. Is there any possibility to convert the UI elements into ...
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Issues with MediaPlayer and RenderTargetBitmap getting a frame image from video
I'm trying to use MediaPlayerto get a frame from video as an image.
MediaPlayer _mediaPlayer = new MediaPlayer();
_mediaPlayer.ScrubbingEnabled = true;
_mediaPlayer.Open(new Uri("c:\\Sample.mp4&...
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RenderTargetBitmap takes an empty image of my UserControl
I am working on a weekly scheduler on WPF.
I took care of everything but I have a problem.
RenderTargetBitmap takes an empty image of my UserControl, I also tried element.ApplyTmeplate(); it didn't ...
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WPF C# Capture Canvas image with semi-transparent background [duplicate]
UPDATE: Is not a duplicate.
My question is not how to take a screenshot. I know this, but it's not what I need. I can have others controls over the Canvas and I don't want to capture them but just ...
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