From 19b72cc41ef69825cfdf631012b94ef4a6087cb8 Mon Sep 17 00:00:00 2001
From: berak <px1704@web.de>
Date: Tue, 3 May 2016 09:13:54 +0200
Subject: [PATCH] tracking: fix selectRoi()

---
 modules/tracking/src/roiSelector.cpp | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/modules/tracking/src/roiSelector.cpp b/modules/tracking/src/roiSelector.cpp
index f2ee396c0..a1a7e6ed3 100644
--- a/modules/tracking/src/roiSelector.cpp
+++ b/modules/tracking/src/roiSelector.cpp
@@ -107,10 +107,8 @@ namespace cv {
     // select the object
     setMouseCallback( windowName, mouseHandler, (void *)&selectorParams );
 
-    // extract lower 8 bits for scancode comparison
-    unsigned int key_ = key & 0xFF;
     // end selection process on SPACE (32) ESC (27) or ENTER (13)
-    while(!(key_==32 || key_==27 || key_==13)){
+    while(!(key==32 || key==27 || key==13)){
       // draw the selected object
       rectangle(
         selectorParams.image,
@@ -143,8 +141,8 @@ namespace cv {
       // reset the image
       selectorParams.image=img.clone();
 
-      //get keyboard event
-      key=waitKey(1);
+      //get keyboard event, extract lower 8 bits for scancode comparison
+      key=waitKey(1) & 0xFF;
     }