image-zoom

I want to zoom-in or zoom-out a image on picturebox using mouse wheels in c#.How Can i do? Sivodaya Tech This topic helps to zoom in and out picture in picturebox add below code inside the picturebox mouse wheel event if (e.Delta != 0) { if (e.Delta <= 0) { //set minimum size to zoom if (PictureBox1.Width < 50) return; } else { //set maximum size to zoom if (PictureBox1.Width > 500) return; } PictureBox1.Width += Convert.ToInt32(PictureBox1.Width * e.Delta / 1000); PictureBox1.Height += Convert.ToInt32(PictureBox1.Height * e.Delta / 1000); } Use the MouseWheel event : http://msdn.microsoft.com

In my iPhone app, I need to provide the user with an ability to zoom/pan a large-ish image on the screen. This is quite simple: I use UIScrollView , set max/min scale factors and zooming/panning works as expected. Here's where things get interesting. The image is a dynamic one, received from a server. It can have any dimensions. When the image first loads, it's scaled down (if needed) to fit completely into the UIScrollView and is centered in the scroll view - the screenshot is below: Because the proportions of the image are different from those of the scroll view, there's white space added

I am trying to allow the user to touch the image and then basically a cirular magnifier will show that will allow the user to better select a certain area on the image. When the user releases the touch the magnified portion will dissapear. This is used on several photo editing apps and I am trying to implement my own version of it. The code I have below does magnify a circular portion of the imageview but does not delete or clear the zoom once I release my finger. I currently set a bitmap to a canvas using canvas = new Canvas(bitMap); and then set the imageview using takenPhoto.setImageBitmap

My layout contains buttons, textviews, etc. Is it possible to implement pinch zoom in my layout? Vinayak Bevinakatti Check out the following links which may help you Best examples are provided in the below links, which you can refactor to meet your requirements. implementing-the-pinch-zoom-gestur Android-pinch GestureDetector.SimpleOnGestureListener For android 2.2+ (api level8), you can use ScaleGestureDetector. you need a member: private ScaleGestureDetector mScaleDetector; in your constructor (or onCreate()) you add: mScaleDetector = new ScaleGestureDetector(context, new