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Mulham Fetna
5dbfbcdcac
core: fix Unicode temp path handling on Windows (fix #21960) #28935 ## Summary Fixes getCacheDirectoryForDownloads and related temp file functions failing when the user home directory contains Unicode characters like C:\\Users\\テスト\\AppData\\Local\\Temp. ## Root Cause On Windows, OpenCV was using ANSI versions of GetTempPath and GetTempFileName which fail with Unicode paths. ## Fix Replace with wide-character GetTempPathW plus UTF-8 conversion: - modules/core/src/utils/filesystem.cpp - getCacheDirectory for cache paths - modules/core/src/system.cpp - temporary file creation - modules/ts/src/ts_gtest.cpp - test stream capture ## Testing The fix has been verified compiles. Manual testing on Windows with Unicode username required. ## Risk Low: Uses same output format, just different encoding path. Existing ASCII functionality preserved. --- Fixes opencv/opencv#21960
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