TLDR:
If you hover over your code in Understand it will tell you about what you are hovering over. This article shows examples but is not comprehensive by any means!
Details:
Note: I’m using C here, but this works for any language we support.
Hover over a function:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-81.png)
Hover over an include to see the full path to the file being included:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-82.png)
Hover over a macro to see it’s value at that point in the code:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-83.png)
Hover over a variable and see what type it is:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-84.png)
Hover over an enum and see it’s value:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-85.png)
Hover over a global object and you’ll see it’s latest assignment:
![](https://blog.scitools.com/wp-content/uploads/2021/09/1_image-86.png)