#include <GUIToolTip.au3>
Opt('MustDeclareVars', 1)
_Hide_Blank_ToolTips()
Func _Hide_Blank_ToolTips()
Local $a_List, $s_Title
$a_List = WinList('[CLASS:tooltips_class32]')
For $i = 1 To $a_List[0][0]
If Not (BitAND(WinGetState($a_List[$i][1]), 2)) Then ContinueLoop
$s_Title = WinGetTitle($a_List[$i][1])
If StringRegExp($s_Title, '[^\s]') Then ContinueLoop
_GUIToolTip_TrackActivate($a_List[$i][1], 0)
Next
EndFunc ;==>_Hide_Blank_ToolTips