Screenshot of specific window (not full screen)

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is it possible to take a screenshot (I used Java commands) of only a specific Window (not the entire screen) ? - for instance, from the full screen below I only want to take a screenshot from the pop-up screen (GUI window)
To take a screenshot from the full window I used the following commands:
robo = java.awt.Robot;
t = java.awt.Toolkit.getDefaultToolkit();
rectangle = java.awt.Rectangle(t.getScreenSize());
image = robo.createScreenCapture(rectangle);

Accepted Answer

Image Analyst
Image Analyst on 17 Sep 2022
Edited: Image Analyst on 17 Sep 2022
Use exportgraphics and pass it the handle of just the one figure or axes that you want.
fileName = fullfile(pwd, 'Screenshot.png')
exportgraphics(gcf, fileName); % Save current figure window.
% or
exportgraphics(gca, fileName); % Save last axes you plotted in.

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