::wxGetTopLevelParent() returns NULL

[Thomas Zehbe]

Hi,
Tried to call ::wxGetTopLevelParent() from wihtin the dtor of a listctrl 
contained in a wxFrame. The call returns NULL.
Debugging it I found this function in wincmn.cpp

bool wxWindowBase::IsTopLevel() const
{
    return false;
}

which was called from
wxWindow* wxGetTopLevelParent(wxWindow *win)
{
    while ( win && !win->IsTopLevel() )
         win = win->GetParent();
    return win;
}

Seems to be a complex implementation of a NULL pointer of type wxWindow*.
Did I miss something?
What I want to archieve is to make the column settings of the listcontrol 
persistent. Therefore I want to get the title of the frame or dialog and use 
it together with the controls ID as Identifier for wxConfigBase entry.

Any hint would be appreciated.
Regards,
Thomas


 
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Dipl.-Ing. Thomas Zehbe
INGENION GmbH
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