如何获取JPanel中点的颜色? [英] How to get the color of a point in a JPanel?

问题描述

通过知道 JPanel 中某个点的坐标，我如何获得它的颜色?

By knowing the coordinates of a point in a JPanel, how can I get its color?

推荐答案

在从 BufferedImage 创建的 Graphics2D 对象中绘制面板的内容，然后检索像素颜色:

Draw the content of the panel inside a Graphics2D object created from a BufferedImage and then retrieve the pixel color:

BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D g2 = image.createGraphics();
_mainPanel.paint(g2);
image.getColorModel().getRGB(pixel);
g2.dispose();

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