ZDoom

Not related to this problem, but that call trace finally reveals why it was impossible to do live switch between D3D and OpenGL in the past - behold that wglWndProc in there!

win32u.dll!NtUserMessageCall()
user32.dll!RealDefWindowProcWorker()
user32.dll!DefWindowProcW()
gzdoom.exe!WndProc(HWND__ * hWnd, unsigned int message, unsigned __int64 wParam, __int64 lParam) Line 623
user32.dll!UserCallWinProcCheckWow()
user32.dll!CallWindowProcW()
opengl32.dll!wglWndProc()
user32.dll!UserCallWinProcCheckWow()
user32.dll!DispatchMessageWorker()
gzdoom.exe!I_GetEvent() Line 768
gzdoom.exe!I_StartTic() Line 791

It dead locks inside [url=https://github.com/coelckers/gzdoom/blob/d5410a8828a2caa1eb6c2ef0b84f1cd2ea05def0/src/win32/i_input.cpp#L623]DefWindowProcW()[/url] indeed.[code]win32u.dll!NtUserMessageCall()
user32.dll!RealDefWindowProcWorker()
user32.dll!DefWindowProcW()
gzdoom.exe!WndProc(HWND__ * hWnd, unsigned int message, unsigned __int64 wParam, __int64 lParam) Line 623
user32.dll!UserCallWinProcCheckWow()
user32.dll!CallWindowProcW()
opengl32.dll!wglWndProc()
user32.dll!UserCallWinProcCheckWow()
user32.dll!DispatchMessageWorker()
gzdoom.exe!I_GetEvent() Line 768
gzdoom.exe!I_StartTic() Line 791[/code]
The message in question was [url=https://docs.microsoft.com/en-us/windows/desktop/winmsg/wm-inputlangchangerequest]WM_INPUTLANGCHANGEREQUEST[/url].

[quote="Rachael"]For this, it might be helpful to list your bindings for those selected keys.[/quote]
You mean ingame? Shift for running, 1–4 is weapons, and Alt is unbound. And that’s not unique to Hexen—my bindings are the same in other games.

For this, it might be helpful to list your bindings for those selected keys.

When switching keyboard layouts in Hexen or Hexen: DD, the game locks up. For some reason, this doesn’t happen with any other IWAD, and because it’s an instant freeze, I can’t show anything by using a log file.

I’ve confirmed that this only happens when using Windows shortcuts (in my case, Shift + Alt + 1–4). When switching via the taskbar and returning to the game, GZDoom doesn’t lock up.

Below is a list of my keyboard layouts, if relevant:

[img]https://s.put.re/SohG7XXh.png[/img]

(Swedish, Croatian, Serbian, Russian)