我无法将Control-Backspace键映射到KeyStroke.以下对我没有意义.
import java.awt.event.KeyEvent;
import javax.swing.KeyStroke;
public class TestControlBackspace {
public static void main(String[] args) {
KeyStroke ks1 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, KeyEvent.VK_CONTROL);
KeyStroke ks2 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, KeyEvent.VK_SHIFT);
KeyStroke ks3 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0);
System.out.println(ks1);
System.out.println(ks2);
System.out.println(ks3);
}
}
输出:
按下BACK_SPACE
按下BACK_SPACE
按下BACK_SPACE
我在这里错过了什么吗?
解决方法:
您可能忘记阅读documentation.请注意,修改器蒙版来自与按下的键不同的位置.
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.KeyStroke;
public class TestControlBackspace {
public static void main(String[] args) {
KeyStroke ks1 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, InputEvent.SHIFT_DOWN_MASK);
KeyStroke ks2 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, InputEvent.CTRL_DOWN_MASK);
KeyStroke ks3 = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0);
System.out.println(ks1);
System.out.println(ks2);
System.out.println(ks3);
}
}