title: Display zoomed in part of pictureBox in another pictureBox by hovering cursor c#
body: <p>I am working on a program that displays the liveView image from a Nikon camera in a pictureBox. I want to be able to hover with the cursor over the image and display a zoomed in area around the cursor in another picturebox. I would also like to add a crosshair instead of mouse pointer. The only solution I have found so far is the following:</p>
  <p><a href="https://stackoverflow.com/questions/57347165/zoom-an-image-in-a-second-picturebox-following-cursor">zoom an image in a second picturebox following cursor</a></p>
  <p>It does exactly what I want, however I can not get it to work. More specifically, nothing is showing up in picZoom. In the example, images are loaded while in my case, a video stream is shown. That might be the reason why I am not getting it to work. I am relatively new to c#, and did not fully understand the example.</p>
  <p>Lets say I have picBox where I receive the video stream. How do I show a portion of picBox around the cursor (let's say a rectangle around the cursor of dimensions x,y) in picZoom with a crosshair as in the example. I do not need to worry about differing dimensions of picBox and picZoom since they will not vary. I also want to be able to vary the degree of zoom by a factor zoomFactor.</p>
  <p>If anyone could give me pointers or a solution, it would be greatly appreciated. Also, sorry if my question is poorly formatted, I am new to the forum.</p>
  <p>Thank you!</p>
  <p>Alexander</p>