check for new messages trigger

[Davider]

Thanks for your help.
With the above code, both LA and The Program are stuck in infinite execution, consuming 1-2% CPU usage.
Is it possible to create a trigger to scan images? Similar to the QM code below, Or suggest a more efficient monitoring method?

   
Macro Macro33

Code:

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int w=win("" "MainWnd")
if scan("image:hE9074BBF" w 0 1|2|16)
,out "ok"