Use "GUIToolTip_TrackPosition",tooltip will trace my mouse #include <GuiToolTip.au3> #include <WinAPI.au3> #include <GUIConstantsEx.au3> #include <FontConstants.au3> #include <SendMessage.au3> #include <WindowsConstants.au3> Local $hToolTip = _GUIToolTip_Create(0), $hDC = _WinAPI_GetDC(0) Local $hFont = _WinAPI_CreateFont(32, 0, 0, 0, 800, False, False, False, $DEFAULT_CHARSET,$OUT_DEFAULT_PRECIS, $CLIP_DEFAULT_PRECIS, $DEFAULT_QUALITY, 0, 'Tahoma') Local $hOldFont = _WinAPI_SelectObject($hDC, $hFont) _SendMessage ($hToolTip, $WM_SETFONT, $hFont, TRUE) _GUIToolTip_AddTool($hToolTip, 0, "55555555555555555") _GUIToolTip_TrackPosition($hToolTip,0 ,0) _GUIToolTip_TrackActivate($hToolTip, True, 0, 0) Sleep(1500) _GUIToolTip_UpdateTipText($hToolTip, 0, 0, "999999999999") Sleep(3000) _GUIToolTip_Destroy($hToolTip)