🚀 go-pugleaf

Michael,

Thanks for your answer. I quess you are right,  I should use JDesktopPane, but it seems that is not all.

I add a JDesktopPane and add JInternalFrame to the JDesktopPane. Now the frame can be resized, but it CANNOT be closed.

I am not sure if it needs more than JDesktopPane. Anyway, thanks for your answer again.

wu



Michael A. Long wrote:

> I just started playing with this so take this answer with several grains of salt.  I believe you have to, or should, use
> JDesktopPane as a container for JInternaFrame.
>
> This is one area where the help file (suprisingly) has some pretty good info.  Just look up JDesktopPane.
>
> Wu, Weimin wrote in message <35F6C23F.C5965536@784.hypermart.com>...
> >Hi,
> >
> >I am trying to use a JInternalFrame in an applet that extends JApplet. I
> >am using JBuilder c/s.
> >
> >I created a JInternalFrame
> >
> >  JInternalFrame jInternalFrame_login = new
> >JInternalFrame("test",true,true,true,true);
> >
> >and add it to a JPanel, which is added to this. No code is added
> >manually ( except extending of  JApplet).
> >
> >
> >Then I test it in AppletViewer. The frame is displayed there and looks
> >fine. But when I click the icon on the top of the frame, the frame
> >doesnt response. It cannot be maximumized  and closed. It can be
> >"iconized", disappeared,  I have to resize the AppletViewer pane to find
> >the iconized frame.
> >
> >The error message is,  java.lang.NullPointerException.
> >
> >Is there anybody could help me with this problem? Thanks.
> >
> >
> >
> >
> >
> >wu
> >