[4223] in java-interest
Re: Menubars
daemon@ATHENA.MIT.EDU (Patrick Taylor)
Wed Dec 13 19:26:10 1995
Date: Wed, 13 Dec 1995 17:33:38 -0500
From: Patrick Taylor <patrick.taylor@template.com>
To: java-interest@java.sun.com
From: robertf@sshare.com (Robert Fox)
Date: Tue, 12 Dec 95 10:01:44 PST
Subject: Menubars
I am using Netscape to view my applets... I have created a Frame and attached
a MenuBar to it... Netscape spawns a window with a frame, but I cannot
close the frame (using the system menu->Exit or hitting the 'X' in upper
right doesn't work!). The only way I have found to destroy the frame is
by closing Netscape! Does anyone know how to get around this? Or is this
simply a bug in Netscape...
For some reason which I do not know, the Frame class does not handle the
WINDOW_DESTROY Event. It ignores it. You must subclass Frame and redefine
the handleEvent method to call dispose() on a WINDOW_DESTROY Event.
Typically, you need to subclass anyway because you'll want to define the
handling of other events in the frame, such as button presses and menu
selections. For example:
public boolean handleEvent(Event evt) {
switch (evt.id) {
case Event.ACTION_EVENT:
String s = evt.arg.toString();
if (s.equals("Pack")) {
this.pack();
} else if (s.equals("Close")) {
this.dispose();
} else if (s.equals("Exit")) {
System.exit(0);
}
return true;
case Event.WINDOW_DESTROY:
this.dispose();
return true;
}
return super.handleEvent( evt);
}
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