How to ascertain an unique ID (PID, CLASS) of a window ?

[Alf_H]

I have sometimes windows opend or active, with the same name or without a identic name of the windows.

It could be able, that there is a window opend, with a question, i.E. Do you wish to overwrite the existing file ? Yes or No ?

But not at alle times these question-window is opend/ active.

So, I need, an ID to find out, which window are active an what is the PID, CLASS of this window.

Then I can make the scripting, waht AutoIT should do....

 

[Alf_H]

I don't find any button, to edit my own article.

The handle of WinGetHandle changes every time, a new window open. The exactly same window (i.e. Microsoft Excel) has not the ame handle-ID.