Update:
Global $g_hToolTip = 0
Func _GUICtrlSetTip($controlID, $tiptext, $title = Default, $icon = Default, $options = Default, $useControlID = True)
;Return GUICtrlSetTip($controlID, $tiptext, $title, $icon, $options)
Local $hCtrl = ($useControlID = True ? GUICtrlGetHandle($controlID) : $controlID)
Return _GUIToolTip_AddTool($g_hToolTip, 0, $tiptext, $hCtrl)
EndFunc ;==>_GUICtrlSetTip
Func _GUICtrlGetControlID($hCtrl = -1)
Local $aRet = DllCall("user32.dll", "int", "GetDlgCtrlID", "hwnd", ($hCtrl = -1 ? GUICtrlGetHandle(-1) : $hCtrl))
Return (IsArray($aRet) ? $aRet[0] : -1)
EndFunc ;==>_GUICtrlGetControlID