[FR-devel] FR UI problem with 2 windows

[Laurent Julliard]

Curt, Rich

  I'm contacting you directly because I have been fighting with a 
problem in the implementation of the Databus Inspector (DBI) for the 
last 2 days and I'm stuck.

The way the DBI works is that when you select the "Databus Inspector" 
item in the Tools Menu a second window pops up and remain on the desktop 
as long as you don't close it. It is a second main window if you want.

Now the problem is that when i create such a window there is aboslutely 
no way by which I can make the window active. If I click on the tree 
list showing the databus the window broder quickly flashes for a little 
while, a beep can be heared but the main FR window remains the active one.

One could think it is a FOX problem with 2 main windows but I tried to 
write minimal piece of FOX code to validate the concept and it works 
perfectly ok (See sample code below). So there is something wrong in FR 
and it's probably in the way FOX events or focus or both are handled. Do 
you have any idea on what could cause this problem?

Do you think it could be linked with the message pump hack which plays 
the role of a classical app.run() if I understand the code correctly

Any idea/suggestion is welcome because it's really blocking the DBI 
development

Thanks for your help.


------ 2 main window sample code ----------------
# Create a new application
app = FXApp.new("Browser", "FoxTest")

# Open the display
app.init(ARGV)

main = FXMainWindow.new(app, "Hello", nil, nil, DECOR_ALL)
button = FXButton.new(main, "&Hello, World!")# nil, app, FXApp::ID_QUIT)


button.connect(SEL_COMMAND) { |sender, sel, checked|
  main2 = FXMainWindow.new(app, "Hello2", nil, nil, DECOR_ALL)
  contents = FXHorizontalFrame.new(main2, LAYOUT_FILL_X|LAYOUT_FILL_Y)
  groupbox = FXGroupBox.new(contents, "Classes",
                            LAYOUT_FILL_X|LAYOUT_FILL_Y|FRAME_GROOVE)
  button2 = FXButton.new(groupbox, "&Hello, World2!", nil, app, 
FXApp::ID_QUIT)
  main2.create
  main2.show
}

app.create
main.show(PLACEMENT_SCREEN)

app.run

---- end of code -----

--
Laurent JULLIARD - Xerox R&T/SSTC/XPA - Open Source team
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