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Questions tagged [system.windows.media]

44 questions
33
votes
2 answers

Convert System.Drawing.Color to System.Windows.Media.Color

System.Drawing.Color drawRedColor = System.Drawing.Color.Red; System.Windows.Media.Color mediaColor = ?drawRedColor.ToMediaColor();?
serhio
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1 answer

System.Windows.Media.DrawingVisual.RenderOpen() erroring after a time

Use Case: I'm using WPF to dynamically overlay text on images within a web context. Solution: I'm using a DrawingContext from a DrawingVisual (wrapped in a using statement) to draw the original bitmap and overlay text. Problem: After a few…
Daniel Bradley
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5 answers

How to make specific color darken or lighten based on value in wpf?

I am developing wpf application. I am having the instance of Color object in C#. Suppose I have instance of red Color object i.e. Color c = Color.FromArgb(255,255,0,0) Now suppose that I have one value which ranges from 1 to 10. So based on this…
Shailesh Jaiswal
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5
votes
2 answers

Getting Geometry length

Does anyone know an efficient way of getting the length of a WPF geometry in Pixels? I know that geometries in WPF are vector based and therefore do not really have a pixellength. But it has to be possible to get the length based on the visible…
Michael
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4
votes
1 answer

System.Windows.Media.Imaging.WriteableBitmap leaking memory?

Consider the following code throws an exception 'MILERR_WIN32ERROR': while(true) { System.Windows.Media.Imaging.WriteableBitmap writableBitMap = new…
meds
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3
votes
1 answer

Changing color of the GeometryDrawing Brush when Button is pressed

I created a Button Template. There are an Image and a Label. The Source of the Image is in a ResourceDictionary Pictures. The Source of the picture is a DrawingImage with White brush color. …
Pavel Etrich
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3
votes
1 answer

Default foreground color of ProgressBar

I've been changing the foreground color of the ProgressBar control from my C# code using the Brush and Brushes classes from the System.Windows.Media library. However, I'm wondering if .Net provides access to the original default foreground color of…
Eric after dark
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3
votes
2 answers

custom drawing portion of image .net 4.5

I am custom drawing two zoom-in images on the screen, one next to each other. Each one of them occupies half of the screen. I have previously done it in .net 3.5 (I think) by overriding the OnPaint(): //using System.Drawing /// …
jimasun
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2
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1 answer

JPEGEncoder Windows Media Imaging not honoring color profile of Image

I have the following image (have put a screen-grab of the image as its size is more than 2 MB - the original can be downloaded from https://drive.google.com/file/d/1rC2QQBzMhZ8AG5Lp5PyrpkOxwlyP9QaE/view?usp=sharing I'm reading the image using the…
techno
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2
votes
1 answer

Can i add elements programatically to XAML? WPF c#

I want to add canvas elements by user input. Something like when a button is clicked, a new element is added to the XAML file, inside the Canvas.
Gergő S
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2
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0 answers

TransformedBitmap in WPF is producing black lines under Windows XP

When porting a WPF application from windows 7 to windows XP, I found that where I was displaying a TransformedBitmap, thin, patterned black lines appear vertically down the image on transforms that aren't power of 2 resizes (1/2, 2, 4). This is the…
Dan Monego
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0 answers

Can I override a color on an DrawingBrush image loaded from a resource?

I want to change the color on my Images created from my resource file without creating more resources. My current solution is to create a second image resource with the color i want. But i want to set it in my code. I load the image like this: …
ace
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2
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2 answers

How to convert string to Color in SharePoint Client Object model for silverlight?

I need to convert a string which has the name of a color (e.g. "Red") to an object of System.Windows.Media.Color. I am using the following code: using System.ComponentModel; TypeConverter tc = new TypeConverter(); Color bgColor =…
Nidhi
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1
vote
1 answer

UWP Media.Capture as a source for WebRTC

I would like to capture a media using this Windows.Media.Capture as a Stream for WebRTC. The reason for that is, that I would like to use the AddVideoEffectAsync() method to apply my custom Effect. Is that possible? And if not, what are the option…
MartinVotruba
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1
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1 answer

HitTest and RayMeshGeometry3DHitTestResult programmatically in a window-less console application

I need to perform the intersection of a line and a triangle mesh. That operation would be very conveniently performed if I could use VistualTreeHelper.HitTest method, that would return a RayMeshGeometry3DHitTestResult structure. The problem is:…
heltonbiker
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