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update samples: waitKey() usage

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Original commit is a5f19f7dd6
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/tutorial_code/ImgProc/Threshold_inRange.cpp
+1 -1
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@@ -41,7 +41,7 @@ int main()
createTrackbar("Low B","Object Detection", &low_b, 255, on_low_b_thresh_trackbar);
createTrackbar("High B","Object Detection", &high_b, 255, on_high_b_thresh_trackbar);
//! [trackbar]
while(char(waitKey(1))!='q'){
while((char)waitKey(1)!='q'){
//! [while]
cap>>frame;
if(frame.empty())