[2.0.11] Error 87 by ControlGetFocus("A") when cmd.exe active Topic is solved

[riyah96662]

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F1::Tooltip ControlGetFocus("A")

Somehow an OSError 87 is thrown when passing a cmd.exe window to ControlGetFocus().
It yields the same result by calling ControlGetFocus("ahk_exe cmd.exe").
BTW, it works fine (returning 0) with powershell.exe.

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[gregster]

On my Win11 version (Version 10.0.22621.3296), WindowSpy shows ahk_exe WindowsTerminal.exe for the cmd.exe window. Did you check?

With ControlGetFocus("A") I get no error message - it works like expected. But when I look at your error message above, the double quotes look wrong - too slanted.

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Perhaps this depends on system settings, but on my computer, in error messages, the quotes look like regular straight ones. I would check if you really used this code with the regular double quotes:

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F1::Tooltip ControlGetFocus("A")

PS: I see now that you used the administrator command prompt. To interact with that, your script would need similar rights, afaik.

Edit:
Ah, the admin cmd prompt actually has ahk_exe cmd.exe; and when I run the script with ControlGetFocus("A") elevated, I can actually reproduce the error message you showed.

[riyah96662]

You can choose between WindowsTerminal.exe or conhost.exe as the GUI for cmd/powershell.
It happens only when you use cmd with conhost.exe.

[lexikos]

As documented...

An OSError is thrown if there is a problem determining the focus.

The target window belongs to a thread which does not have a message queue; in other words, a non-GUI thread. GetGUIThreadInfo can't be used to retrieve the focus (and other info) as it is not a GUI thread and has no focus. I suppose this is only possible for console windows, and that it would be reasonable to return 0, which is what happens when a top-level window is focused. However, it is not safe to assume that error 87 means the window is a console window.

[lexikos]

In v2.0.12, ControlGetFocus returns 0 for console windows.