Then your image should completely fill your window.Īnd you can always use and Uri to set the bitmapsource to the file on your system. If you set the image margin to 0 and remove the horizontal and vertical alignment. And if image (from which you use the dispatcher) is also in the UI thread (what I guess it is since it is a UI object) then this wont make your application use multiple cores. Example 1: This example stretches the background-image in x and y direction. The length value can be in the form of px, em, etc. length: This property value is used to scale the background-image. You will learn how you can stretch images to fit the. cover: This property value is used to stretch the background-image in x and y directions and cover the whole area. The dispatcher is used to execute thing from other threads into the UI thread. This article will show you how you can stretch the image in the Flutter app and set the background.
#BACKGROUND IMAGE STRETCH TO FILL CODE#
In the code behind you use the dispatcher to make things use multiple cores? Use '100' to fill the width, then a fixed value for the height (assuming you know what the height of your image is). That allows you to enter two parameters - width and height, in that order. Allows passing CSS styles to the underlying image element. This image tag is not in a canvas, it is in a grid. To fill width-wise, use 'background-size'. If no styles are applied to the image, the image will stretch to fit the container. In the image tag in the XAML you said: Canvas.Left="-135" Canvas.Top="-32" Normal,īitmapSource bmpsrc = BitmapSource.Create(W, H, dpi, dpi, PixelFormats.Bgr24, null, m圜olorImage_IN, W * 3) Īnd in your XAML you name your image: imagePanel1 For example if my image is 1000px wide how can I make it stretch beyond its width to fill the screen.
I know there will be some blurring but that is OK. To fill the entire screen, you can use Fill (will stretch the smaller of width / height to fill the entire screen, preserving the aspect ratio but possibly cropping the image), Stretch (will stretch both width and height, which will not crop the image but may change the aspect. Is it possible to increase the size of a background image beyond it's dimensions to fill the page. What else do I need to be doing? Any help with the code (see below) would be greatly appreciated.Ĭode I use to draw the image: byte m圜olorImage=// 256x256 RGB image loaded from disk Take a look at the Image Position property in the screen - some of its options will resize the image appropriately. It is possible to set the CSS background-size property to cover. I am puzzled because I have set Stretch="Fill" in the XAML code. Fill the Entire Viewport with the background-size Property. When my program displays an image which is smaller than the Image GUI object defined in XAML, it does not get stretched to fit as I would like it to.įor example a 256x256 image only occupies the upper left quadrant of my 512x512 Image GUI object.
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