update samples: waitKey() usage

Original commit is a5f19f7dd6ae5bc93f73e0417a9e0bfd34c01672
2016-08-12 15:11:30 +02:00
parent 4e7b521438
commit 6d34d6b47e
76 changed files with 142 additions and 154 deletions
@@ -167,8 +167,8 @@ int main(int argc, char** argv)
        findSquares(image, squares);
        drawSquares(image, squares);

-        int c = waitKey();
-        if( (char)c == 27 )
+        char c = (char)waitKey();
+        if( c == 27 )
            break;
    }