Accessible object trigger to waitfor routine

[ssimop]

This is the keyboard trigger to monitor clicking on one of the two PUSHBUTTONs (Save/Cancel) on Google Chrome's print (Ctrl-P)screen. I am afraid that it is not possible to locate these buttons using Acc techniques. The trigger works properly. My question is whether and how I could convert this trigger to a waitfor routine. Any advice will be appreciated.

Function tempf01
Trigger $a 133 -4 "" "Chrome_RenderWidgetHostHWND" "" "Chrome Legacy Window" "Chrome_WidgetWin_1" "" 43     

Code:

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;\
function hwnd idObject idChild
Acc a.FromEvent(hwnd idObject idChild)
_s=a.Name

mes _s "Clicked"

[Gintaras]

Macro Macro2763

Code:

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__Handle ev=CreateEvent(0 0 0 0)
Acc a
int hh=SetWinEventHook(EVENT_OBJECT_FOCUS EVENT_OBJECT_FOCUS 0 &sub.Hook_SetWinEventHook 0 0 WINEVENT_OUTOFCONTEXT)
opt waitmsg 1
wait 0 H ev
UnhookWinEvent hh

_s=a.Name
mes _s "Clicked"


#sub Hook_SetWinEventHook v
function hHook event hwnd idObject idChild dwEventThread dwmsEventTime

if(idObject!=OBJID_CLIENT) ret
;outw hwnd
if(!WinTest(hwnd "Chrome_RenderWidgetHostHWND")) ret
a.FromEvent(hwnd idObject idChild)
if(a.Role!=ROLE_SYSTEM_PUSHBUTTON) ret
SetEvent ev

err+

[ssimop]

Thank you very much! I am once more obliged. Best regards.