如何捕获 Swing GUI 元素? [英] How to capture a Swing GUI element?

问题描述

我能否只捕获 Swing GUI 的一个元素(例如，包含一些 JTextField 的 JPanel)?

Can I capture only an element of a Swing GUI (e.g. a JPanel containing some JTextFields)?

推荐答案

以下方法应捕获 Swing GUI 元素:

The following method should capture a Swing GUI element:

public void captureComponent(JComponent component, File imageFile) throws IOException {
    BufferedImage bufImage = new BufferedImage(component.getSize().width, component.getSize().height, BufferedImage.TYPE_INT_RGB);  
    component.paint(bufImage.createGraphics());   
    imageFile.createNewFile();  
    ImageIO.write(bufImage, "jpeg", imageFile);
}

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