How does one change foobar2000 window size?

I have this in my track info panel settings.

CODE

$button2($eval(%_width%-175),$eval(%_height%-16),0,0,75,16,
,
,
PVAR:SET:ShowFull:$ifgreater($getpvar(ShowFull),0,0,1),)
$button2($eval(%_width%-175),$eval(%_height%-16),0,0,75,16,
'$font(Tahoma,8,,0-0-0)Change Win',
'$font(Tahoma,8,italics,0-0-0)Change Win',
WINDOWSIZE:600:600,TOOLTIP:"Change window size")



Now I need code somewhere to catch windows resize message?