Re: [PATCH 0/5] MR11193: Imm32: Send WM_IME_ENDCOMPOSITION / reset composition string more consistently.

[Paul Gofman (＠gofman)]

That helps "Call of Duty: Black Ops Cold War" which otherwise stops processing keyboard input after popping up chat window once (because it tracks WM_IME_STARTCOMPOSITION / WM_IME_ENDCOMPOSITION and ignores keys while in composition states; while itself does SetCompositionString when popping up chat window, even though with L"" string).

The first patch ("imm32/tests: Flush events in test_ImmSetCompositionWindow().") fixes test_ImmSetCompositionWindow() on my WM here which randomly fails because focus transition events (which influence IME context set / clear) are arriving late. The same flush helps added tests to avoid the same problem.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/11193#note_143566