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update samples: waitKey() usage

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Original commit is a5f19f7dd6ae5bc93f73e0417a9e0bfd34c01672
This commit is contained in:
StevenPuttemans
2016-08-12 15:11:30 +02:00
committed by Alexander Alekhin
parent 4e7b521438
commit 6d34d6b47e
76 changed files with 142 additions and 154 deletions
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2
samples/cpp/points_classifier.cpp
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@@ -312,7 +312,7 @@ int main()
for(;;)
{
uchar key = (uchar)waitKey();
char key = (char)waitKey();
if( key == 27 ) break;