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
@@ -83,10 +83,10 @@ int main( int argc, char** argv )
        convertScaleAbs(laplace, result, (sigma+1)*0.25);
        imshow("Laplacian", result);

-        int c = waitKey(30);
+        char c = (char)waitKey(30);
        if( c == ' ' )
            smoothType = smoothType == GAUSSIAN ? BLUR : smoothType == BLUR ? MEDIAN : GAUSSIAN;
-        if( c == 'q' || c == 'Q' || (c & 255) == 27 )
+        if( c == 'q' || c == 'Q' || c == 27 )
            break;
    }