From: Yuri Leikind <y.leikind@...>
Date: 2003-12-03T03:42:40+09:00
Subject: FoX: FXMessageBox and threads

Hello all,

I have a FoX application written using threads, and I came across a strange problem - 
when a FXMessageBox is created from a thread other than the one FXApp#run runs in,
after clicking the Ok button, widgets on the main window react to user actions by that
annoying beeping, and do nothing.

Here's the code

require "fox"

class MyApp < Fox::FXApp
    
    include Fox
        
    def initialize
        super("test")
        @window = TopWindow.new(self)
        create
        @window.show
        run
    end
end
    
class TopWindow < Fox::FXMainWindow
        
    include Fox

    def initialize(app)
        super(app, "test", nil, nil, DECOR_ALL, 100, 100, 200, 200)
        FXButton.new(self, "exit").connect(SEL_COMMAND) do
            exit
        end

        FXButton.new(self, "Click me").connect(SEL_COMMAND) do
            Thread.new{
                puts Fox::FXMessageBox.information(self, Fox::MBOX_OK, "thanks","Thanks you for clicking")
            }
        end
    end
end

MyApp.new


If you comment the Thread.new line, all is fine. If you don't, see what happens after closing the message window.

What is even more interesting is that when I close the window using my window manager, "Segmentation Fault"
message is shown.


What's wrong?


ruby 1.8.0 on Linux
FoX version : 1.0.48
FXRuby version: 1.0.27


-- 
Best regards,
Yuri Leikind