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Merge pull request #7935 from alalek:fix_waitKey

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This commit is contained in:
Vadim Pisarevsky 2017-01-10 11:18:13 +00:00
commit b345c6e552
1 changed files with 1 additions and 1 deletions
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modules/highgui/src/window.cpp
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@ -218,7 +218,7 @@ int cv::waitKey(int delay)
if (use_legacy > 0)
return code;
#endif
return code & 0xff;
return (code != -1) ? (code & 0xff) : -1;
}
int cv::createTrackbar(const String& trackbarName, const String& winName,