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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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samples/cpp/morphology2.cpp
+6 -8
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@@ -82,21 +82,19 @@ int main( int argc, char** argv )
for(;;)
{
int c;
OpenClose(open_close_pos, 0);
ErodeDilate(erode_dilate_pos, 0);
c = waitKey(0);
char c = (char)waitKey(0);
if( (char)c == 27 )
if( c == 27 )
break;
if( (char)c == 'e' )
if( c == 'e' )
element_shape = MORPH_ELLIPSE;
else if( (char)c == 'r' )
else if( c == 'r' )
element_shape = MORPH_RECT;
else if( (char)c == 'c' )
else if( c == 'c' )
element_shape = MORPH_CROSS;
else if( (char)c == ' ' )
else if( c == ' ' )
element_shape = (element_shape + 1) % 3;
}