From 14096da20ad1a0949c920d8ad7a4b4bf724225f8 Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Fri, 11 Jan 2019 09:00:35 +0100
Subject: [PATCH] Fixed #1577

---
 src/slic3r/GUI/wxExtensions.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/slic3r/GUI/wxExtensions.cpp b/src/slic3r/GUI/wxExtensions.cpp
index cec19427f..096db2c5f 100644
--- a/src/slic3r/GUI/wxExtensions.cpp
+++ b/src/slic3r/GUI/wxExtensions.cpp
@@ -2092,6 +2092,8 @@ void PrusaDoubleSlider::OnMotion(wxMouseEvent& event)
 
 void PrusaDoubleSlider::OnLeftUp(wxMouseEvent& event)
 {
+    if (!HasCapture())
+        return;
     this->ReleaseMouse();
     m_is_left_down = false;
     Refresh();
@@ -2230,6 +2232,8 @@ void PrusaDoubleSlider::OnRightDown(wxMouseEvent& event)
 
 void PrusaDoubleSlider::OnRightUp(wxMouseEvent& event)
 {
+    if (!HasCapture())
+        return;
     this->ReleaseMouse();
     m_is_right_down = m_is_one_layer = false;