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Asked: 2026-05-24T18:29:56+00:00

In python, I enumerate top-level windows through EnumWindows , and also I enumerate the

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In python, I enumerate top-level windows through EnumWindows, and also I enumerate the processes through EnumProcesses.

Then in the python script, I put all the window handles which belongs to the same pid into one list (I did this through GetWindowThreadProcessId).

Later I found out something: there are 3 window handles which belong to notepad.exe, but I only open one text file.

Why?

Besides, I tried to set the text window as the foreground window through SetForegroundWindow, I passed the three window handles to this function, and two work.

How could this be ?

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1 Answer

  1. Editorial Team

    Processes sometimes create invisible windows for their own purposes. You should ignore them (use IsWindowVisible function).

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