This needs testing

This would deserve a second look, though

This does not support hot plug and unplug of devices.

Also, it prevented selecting a device not in the choices list due to
checks in the variables subsystem. (At least with ALSA, not all valid
devices are included in the suggestions.)

Far too many bugs in this code path recently.

Using var_Set("device") is wrong: the "device" variable holds the
currently used output device (as set by the aout plugin), not the
intended output device (as requested through the user interface).

Also fix a memory leak.

If I understood correctly, drive letters are always ANSI

Weirdly, there is no GetProcAddressW, indeed

Since OutputDebugStringW is just a wrapper around OutputDebugStringA

Close #6895
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This requires bleeding-edge libavcodec.

    - fix behavior of video-on-top by adapting to vout windows handling changes
    - set all windows to status level if one vout window has this level:
    This avoids that video effects panel, audio efffects panel etc. pp. are opened behind
    a vout window. Now they can be used as usual.

    Please note, that due to the type of these panels they do not remain visible
    when VLC gets inactive.