Hi all.
I am doing my first event handling in OOoBasic and I am doing this to
track which cell a user has currently selected:
<CODE>
Private SelectionChangeListener as Object
Sub StartSelectionChangeListener
if IsNull(SelectionChangeListener) then
SelectionChangeListener =
CreateUnoListener("XSelectionChangeListener_",
"com.sun.star.view.XSelectionChangeListener")
ThisComponent.CurrentController.AddSelectionChangeListener(SelectionChangeListener)
end if
End Sub
Sub StopSelectionChangeListener
if Not IsNull(SelectionChangeListener) then
ThisComponent.CurrentController.RemoveSelectionChangeListener(SelectionChangeListener)
SelectionChangeListener = Nothing
else
MsgBox "LISTENER NOT STARTED"
end if
End Sub
</CODE>
If I first run StartSelectionChangeListener and then run
StopSelectionChangeListener I get a message box because OOoBasic has
reset the SelectionChangeListener variable to Nothing after exit of
StartSelectionChangeListener (!). If I change the declaration of
SelectionChangeListener to GLOBAL instead of PRIVATE it works as intended.
I wonder why this is so ? Because I also use PRIVATE module vars to hold
dialog references, e.g.
<CODE>
Private Dlg as Variant
Sub ShowMyDialog
Dlg = CreateUnoDialog(DialogLibraries.MyModule.MyDialog)
Dlg.Execute
End Sub
Sub OnButtonClick
MsgBox Dlg.Model.MyButton.Label & " was pressed."
End Sub
</CODE>
and the result from CreateUnoDialog() survives after exit of
ShowMyDialog and so the Dlg var is valid in the button event handler
OnButtonClick. Why this difference ? I would prefer to use PRIVATE
module vars instead of GLOBAL vars if I can.
Cheers
-- Jan Holst Jensen
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