From: "Jacobs, Dee" <Dee.Jacobs@...>
Date: 2003-08-25T20:54:07+09:00
Subject: 

Can you help me understand the scope problem that occurs at line 18 in my
example below?
I initially set the main window icon to yicon at line 9 which works
correctly.

When I try to set the main window icon to xicon at line 18 after clicking
the button,
 I get "x.rbw:18: [BUG] Segmentation fault".

I'm sure this is a misunderstanding on my part as to the scope of
theMainWindow.

Dee Jacobs


1 require 'fox'
2 include Fox
3 theApp = FXApp.new()
4 puts "-------------------"
5     @xicon = FXPNGIcon.new(theApp, File.open("h:/fxruby/icons/kill.png",
"rb").read)
6     @yicon = FXPNGIcon.new(theApp, File.open("h:/fxruby/icons/small.png",
"rb").read)
7     @zicon = FXPNGIcon.new(theApp, File.open("h:/fxruby/icons/12x18.png",
"rb").read)
8 @theMainWindow = FXMainWindow.new(theApp, "Hello")
9 @theMainWindow.setIcon(@yicon)
10 theButton=FXButton.new(@theMainWindow, "Hello\nWorld!")
11 theButton.setIcon(@zicon)
12 myFont=FXFont.new(theApp,"times",20,FONTWEIGHT_BOLD)
13 theButton.font=myFont
14 theButton.tipText = "Push Me!"
15 theButton.textColor=0x008800
16 theButton.frameStyle = FRAME_RAISED|FRAME_THICKtheButton.iconPosition =
~ICON_AFTER_TEXT&~ICON_BEFORE_TEXT&
17 ~ICON_ABOVE_TEXT&~ICON_BELOW_TEXT theButton.connect(SEL_COMMAND) do
|sender, selector, data|
18 @theMainWindow.setIcon(@xicon)
19 sleep 10
20   exit
21 end
22
23 FXTooltip.new(theApp)
24 theApp.create
25 @theMainWindow.show
26 theApp.run

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