Can I read input from a screen to use as a variable.

I have some Arduino Micros I am using to enroll chromebooks. Currently they are just running a set macro of key presses which works fine for the most part, but tends to break if even the slightest timing changes. I was wondering if I could make them a little smarter. Is there a way for them to search what is displayed on the screen and run different programs based on what they find? I'm assuming their probably isn't but maybe there's a command I'm not aware of.

In order for an Arduino to be aware of what is on a Chromebook screen then the Chromebook would need to send the screen contents to the Arduino

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