How to capture screen under Win32?
Not sure if you then want to process the data raw (BMP format is very easy to read) or use libraries like https://metacpan.org/pod/Imager
Using Imager getpixel
if raw and you want to read the pixels yourself, read:
The simple explanation first:
http://paulbourke.net/dataformats/bmp/
Now the more complex explanation:
https://en.wikipedia.org/wiki/BMP_file_format
I could not find the exact post, but I know it exists on PM, it was for BMP with pack. This should do as a start: BMP file manipulation
Just know that with AutoIt3 you can do all this with 1 command:
https://www.autoitscript.com/autoit3/docs/functions/PixelGetColor.htm
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