Drag and drop files into octave GUI

[Ian McCallion]

It is useful to be able to drag a file from a Windows Explorer window
into an ordinary commandline window, an  octave cli window or an
octave GUI window. In all cases the fully qualified filename is placed
under the cursor.

For commandline and cli the filename contains the windows filesep,
'\'.  For octave GUI though the name contains the unix filesep '/',
which is somewhat annoying, though obviously easy to work around once
you are aware of it. Is this a lnown problem?

Cheers... Ian