Robot#getColor
将非常缓慢,特别是当以这种方式使用时。
更好的解决方案是抓取屏幕快照(即使是小块)并处理结果
BufferedImage
.
使用以下示例,我得到。。。
Took 0 seconds to scan image
Took 3 seconds to scan screen
对于面积为
10x10
示例代码。。。
import java.awt.AWTException;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.image.BufferedImage;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
public class TestColorGrab {
private static Robot robot;
public static void main(String[] args) {
try {
robot = new Robot();
} catch (AWTException ex) {
Logger.getLogger(TestColorGrab.class.getName()).log(Level.SEVERE, null, ex);
}
new TestColorGrab();
}
public TestColorGrab() {
Rectangle bounds = new Rectangle(0, 0, 10, 10);
long start = System.currentTimeMillis();
scanImageArea(bounds);
System.out.println("Took " + ((System.currentTimeMillis() - start) / 1000), TimeUnit.SECONDS) + " seconds to scan image");
start = System.currentTimeMillis();
scanRobotArea(bounds);
System.out.println("Took " + ((System.currentTimeMillis() - start) / 1000) + " seconds to scan screen");
}
public static int getColor(int x, int y) {
try {
return (robot.getPixelColor(x, y).getRGB() * -1);
} catch (Exception e) {
System.out.println("getColor ERROR");
return 0;
}
}
public static void scanRobotArea(Rectangle searchArea) {
for (int i = searchArea.x; i < searchArea.x + searchArea.width; i++) {
for (int j = searchArea.y; j < searchArea.y + searchArea.height; j++) {
getColor(i, j);
}
}
}
public static void scanImageArea(Rectangle searchArea) {
BufferedImage image = robot.createScreenCapture(searchArea);
for (int x = 0; x < image.getWidth(); x++) {
for (int y = 0; y < image.getHeight(); y++) {
image.getRGB(x, y);
}
}
}
}