screen capture specific window

Hi everyone,
I would like to programatically screen capture a program window outside of labview. I don't want a capture of the entire screen a la printscreen, just a capture of a specific window.
Also, the program I'm trying to screen capture might be minimized at the time. Are there any methods that work for a minimized program?

Any help appreciated.

I didn't find the right solution from the Internet.

reference:
forums.ni.com/t5/LabVIEW/screen-capture-specific-window/td-p/2209162
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Thanks!