java實現(xiàn)屏幕取色_

1、java實現(xiàn)屏幕取色_ 代碼1。在屏幕上輸出當(dāng)前鼠標(biāo)所在的屏幕顏色。 import java.awt.*; public class PickColor public static void main(String args) PickColor pc = new PickColor(); Color color = pc.pickColor(); System.out.println(color = +color); public Color pickColor() Color pixel = new Color(0,0,0); Robot robot = null; Point mouse

2、point; int R,G,B; / MouseInfo mouseinfo = new MouseInfo(); try robot = new Robot(); catch (AWTException e) e.printStackTrace(); System.exit(1); mousepoint = MouseInfo.getPointerInfo().getLocation(); pixel = robot.getPixelColor(mousepoint.x,mousepoint.y); R = pixel.getRed(); G = pixel.getGreen(); ret

3、urn pixel; 代碼2。用法一個GUI，輸出當(dāng)前鼠標(biāo)所在的屏幕顏色，并轉(zhuǎn)變GUI的背景色。 / create by kin 2021/10/24 refer to import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class PickColor2 extends JFrame public static void main(String args) PickColor2 pc = new PickColor2(); /Color colo

4、r = pc.pickColor(); /System.out.println(color = +color); public PickColor2 () super(Pick Color); setSize(200,200); JPanel p =new JPanel(); getContentPane().add(p); / this mouse listener only is limited in the java desktop region p.addMouseMotionListener(new PickColorMouesMotionListener(p); / this th

5、read is really effected! new PickColorThread(p).start(); setVisible(true); /*Mouse Motion Listener,when mouse are moving, then set corresping screens color to the JPanels background Color. */ class PickColorMouesMotionListener extends MouseMotionAdapter private JPanel p = null; PickColorMouesMotionL

6、istener(JPanel p) this.p = p; public void mouseMoved(MouseEvent e) Color c = pickColor(); this.p.setBackground(c); /System.out.println (c); class PickColorThread extends Thread private JPanel p = null; PickColorThread(JPanel p) this.p=p; public void run () while (true) try Thread.currentThread().sle

7、ep(10); Color c = pickColor(); this.p.setBackground(c); / try change the foreground when background s r = 50 or g = 50 or b = 50 Graphics g = p.getGraphics (); if (c.getRed() =50 | c.getGreen() = 50 | c.getBlue() = 50) g.setColor(Color.WHITE); else g.setColor(Color.BLACK); g.drawString(c.toString(),

8、0,100); g = null; /System.out.println (c); catch (InterruptedException e) e.printStackTrace(); System.exit(1); /*Get Screen Color*/ public Color pickColor() Color pixel = new Color(0,0,0); Robot robot = null; Point mousepoint; int R,G,B; / MouseInfo mouseinfo = new MouseInfo(); try robot = new Robot(); catch (AWTException e) e.printStackTrace(); System.exit(1); mousepoint = MouseInfo.getPointerInfo().getLocation