Display a text message on Desktop (OS X) - macos

I would like to display a message, for example, the OS Version, the installed tool versions etc of my OS X on the desktop background.
I understand that the lockscreen text can be edited, I am not talking about that. That is not what I am interested in.
I know there is a way because I have seen my colleagues at my previous job do this.

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Automator takes screenshot of background instead of window

System specs: mac OS Monterrey V12.5, Apple M1 chip 2020
I am making an application which will take a screenshot of a video, and take the timestamp of the current point in this video, after which both the timestamp and screenshot will be send to a numbers file (mac OS excel like program).
I could not find an application to do this and I tried to get it working using python as shown here but was unable to. Now because I am on Mac I have decided to use Automator instead. I am currently on the screenshot part and Automator has a build in screenshot functionality.
Unfortunately, this screenshot does not detect browser or application windows, it will only take a screenshot of my background.
I have no idea why this is but I suspect it might have to do with permissions related to the M1 chip.
I tried different monitors and simplyfying the automation to just taking a screenshot, but so far nothing has helped, I could not find others online who had a similar problem.
If there is any information missing from this post I will be happy to provide it.
Edit: It seems to be some kind of permission issue, automator CAN take screenshots within Safari, now I just need to find a way to do so in firefox.
I have solved the issue, it turns out that the M1 chip has a special permission for screen recording, adding my Automator application to this permission list will allow it to take screenshots of all windows.

How to Zoom in on text in Mac Mail without changing the text size when composing a message

I am relatively new to Mac Mail and often find I would like to zoom in on some text temporarily to read more thoroughly when composing a message.
The Command+ feature which works on email that I've received doesn't seem to work in Mac Mail. The only solution I've found so far is changing the font size, but I would actually prefer to keep the font size the same for recipients; it would be cumbersome to flip back and forth.
I recently upgraded to the El Capitan 10.11.1 OS X.
Thanks!

Recording X windows events

I am a novice when it comes to X windows but have some knowledge of Unix as such.
My project requires me to track user input and output on X window system. For instance, if the GUI is used to configure a route, I would like to know what application is used and what route has been configured. So far, I have explored the following options with partial success.
1)Tried to hook functions like XDrawString and XDrawText using LD_PRELOAD.
2)Used xwininfo to obtain window id and tools like xev.
3)Looked through similar discussions in this forum especially on xev and xinput
1)May not work with if X11 is statically linked? Not sure.
2)xev does not record key press events for a file edited with gedit or attempting to rename a file from the GUI
3)I am trying to go through X windows system internals.
I am pretty discouraged so far. Any input/pointer will be appreciated.
I think you want the cnee program from the Xnee project, which uses the X window system Record extension. The examples that I see for cnee are almost always about recording input events, but, according to the Xnee manual at https://xnee.files.wordpress.com/2012/10/xnee1.pdf, section 3.2.1 ("Record"), "Xnee can record the whole X11 protocol, not just mouse and keyboard events."
Regarding font operations, I believe that X font facilities, mostly through the X font server, evolved over time too, so it might be the case that the applications that you care about are doing X font operations which you can trace.

Creating a Mac OS application that interacts with all text fields

What would be the first step to creating an application for Mac OS X that would take user interaction from any text field in the system? A couple examples of apps that do this are TextExpander and Typinator.
What I want to do would be using similar functions to access Text fields throughout the computer during user input to give other additional options, I'm just not sure where to even start in Xcode and with what type of project to use.
Any help or links would be greatly appreciated! Thanks!
I think you can probably capture what's being entered into text fields using an Input Manager, although these may be deprecated as of OS X 10.6. You might also want to look at SIMBL.

How to detect which Space the user is on in Mac OS X Leopard?

Mac OS X Leopard has a virtual desktop implementation called Spaces. I want to programatically detect which space the user is currently on.
Cocoa is preferable but AppleScript is acceptable if there's no other way.
I've seen a couple of AppleScript implementations, but the techniques they used seemed a bit too hacky to use in production code (one relied on causing an error and then parsing the error message to get the current space, the other interrogated the Spaces menu GUI)
Use HIWindowGetCGWindowID to get the CGWindowID for your WindowRef.
Use that ID with CGWindowListCreateDescriptionFromArray from CGWindow.h to get information on your window.
Look at the returned dictionary and extract the (optional) kCGWindowWorkspace key. That is your space ID for your window.
If anyone still cares, I've put together a little commandline util based on the answers here which you can get at http://github.com/shabble/osx-space-id

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