怎樣取得父窗口與最上層的JFrame:
java.lang.Object
|__java.awt.Component
|__java.awt.Container
|__java.awt.Window |__javax.swing.JComponent
|__java.awt.Frame |__javax.swing.AbstractButton
|__javax.swing.JFrame |__javax.swing.JButton
import java.beans.Beans;
1. 最簡單的方法
public static Component SwingUtilities.getRoot(Component);
get the root component for the current component tree.(JWindow, JFrame, JApplet...)
2. 利用getParent()
Component c = (Component)e.getResource(); // 事件處理中 Object java.util.EventObject.getSource()
while (!Beans.isInstanceOf(c, JFrame.class)) {
c = c.getParent();
}
if (Beans.isInstanceOf(c, JFrame.class)) {
c = (JFrame)c;
}