- Deal with expanded paths only when loading icons. If the user specifies
an unexpanded path to a module containing icons, this unexpanded path
is returned to the caller!
- Perform the dialog cleanup in WM_DESTROY message handler.
- When pressing ENTER/OK in the dialog box, retrieve the selected icon and
close the dialog *ONLY WHEN* the user actually has selected an icon.
If the user modified manually the module path, pressing ENTER/OK instead
reloads the icons list.
