Nikolay Sivov : comctl32/trackbar: Fix mouse position to thumb position conversion rounding.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6a237bdb603b36550abb57502d0fa1c27a57d7f6
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6a237bdb603b36550abb57502d...

Author: Nikolay Sivov <nsivov(a)codeweavers.com>
Date:   Fri Jul 15 00:37:35 2016 +0300

comctl32/trackbar: Fix mouse position to thumb position conversion rounding.

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/comctl32/trackbar.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/comctl32/trackbar.c b/dlls/comctl32/trackbar.c
index f79cc67..43131ab 100644
--- a/dlls/comctl32/trackbar.c
+++ b/dlls/comctl32/trackbar.c
@@ -34,6 +34,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <math.h>
 
 #include "windef.h"
 #include "winbase.h"
@@ -203,7 +204,7 @@ TRACKBAR_ConvertPlaceToPosition (const TRACKBAR_INFO *infoPtr, int place)
         pos = infoPtr->lRangeMin;
 
     TRACE("%.2f\n", pos);
-    return (LONG)(pos + 0.5);
+    return (LONG)floor(pos + 0.5);
 }