From: Lyle Johnson <lyle@...>
Date: 2002-06-10T23:18:46+09:00
Subject: Re: FXRuby: how to open a second window?

> I'm using FXRuby (Thanks Lyle for the good work) and my toy application 
> creates a mainWindow with a Menu bar. On of this Menu item is in charge 
> of opening a second window (not a dialog box or something-box but a real 
> second window) and I couldn't find how to do that....

I'm not sure if I understand the question, but if you're just wanting to 
display a second main window you could do this:

     menuItem = FXMenuCommand.new(aMenu, "Show another main window")
     menuItem.connect(SEL_COMMAND) {
       mainWindow2 = FXMainWindow.new(app, "Main Window #2")
       mainWindow2.create
       mainWindow2.show
     }

In addition to dialog boxes (which you already know about), yet another 
kind of top-level window is a popup, which is what we use for tooltips, 
menu panes, etc.

> My problem is basically that FXWindow.new expect a FXComposite object as 
> its first argument. I thought passing the root window of the running 
> application as the first argument to FXWindow.new would do (since 
> FXRootWindow inherits from FXComposite) but it fails miserably...

Yes. Although FXWindow is technically not an abstract class (i.e. you 
*can* instantiate one of them), it's really meant to serve as a base 
class for more interesting kinds of windows ;)

> I already feel stupid just thinking about the obvious answers that you 
> will all soon be posted :-/

If it wasn't obvious it wasn't a stupid question. It doesn't come up a 
lot (or hasn't yet, at any rate), but FOX does allow for multiple 
top-level windows.

Hope this helps,

Lyle