How to take a screenshot of a specific program in java?

V

Valera Programmer2016-10-12 15:33:47

Java

Valera Programmer, 2016-10-12 15:33:47

You need to programmatically take a screenshot of any running program as in windows Alt + PrintScreen, I will be glad for any hint)

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2 answer(s)

C

Chvalov, 2016-10-13
@noddux

Get coordinates of a third party window - stackoverflow.com/questions/6091531/how-to-get-the...

M

Mercury13, 2016-10-12
@Mercury13

colororacle.org
Here is an open source color blindness simulator in Java. Takes screenshots of the entire screen; how - look at the source.
It is doubtful that it will be possible to take a snapshot of a separate program cross-platform in Java - it hurts too much for a system thing.
PS For screenshots, a class called "testing robot" is used - they can take a screenshot, but how to get a rectangle of someone else's window? Apparently, only through the native wrapper.
PPS It turns out that there is a native wrapper - JNA. Never worked with her.