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Bug 4284

Summary: Japanese IME on Windows 10 makes invisible window over fullscreen game, StopTextInput no effect
Product: SDL Reporter: Bart van der Werf <bart>
Component: mainAssignee: Sam Lantinga <slouken>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: sezeroz
Version: 2.0.8   
Hardware: x86_64   
OS: Windows 10   

Description Bart van der Werf 2018-09-29 15:55:08 UTC 
When in fullscreen on windows 10 (no reproduction on windows 7 in testing) when triggering Hiragana input mode using japanese IME windows shortcuts (alt-tilde) or Japanese 109 layout metakeys causes an invisible window to be placed over the center of the game, causing a mouse click in that area to minimize the game and other input weirdness.

I could not find documentation on how to suppress ime input to allow WASD input without composing to happen.

StopTextInput had no effect.