X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ce00f59b5b169752d2f05ce3bb1a88ddc1b38b4c..70544c1e6c2c52722a8215ed12724a75a284be08:/src/ribbon/toolbar.cpp

diff --git a/src/ribbon/toolbar.cpp b/src/ribbon/toolbar.cpp
index 475db49bf0..cd4817e0a2 100644
--- a/src/ribbon/toolbar.cpp
+++ b/src/ribbon/toolbar.cpp
@@ -661,9 +661,15 @@ void wxRibbonToolBar::OnMouseUp(wxMouseEvent& WXUNUSED(evt))
             notification.SetBar(this);
             ProcessEvent(notification);
         }
-        m_active_tool->state &= ~wxRIBBON_TOOLBAR_TOOL_ACTIVE_MASK;
-        m_active_tool = NULL;
-        Refresh(false);
+
+        // Notice that m_active_tool could have been reset by the event handler
+        // above so we need to test it again.
+        if (m_active_tool)
+        {
+            m_active_tool->state &= ~wxRIBBON_TOOLBAR_TOOL_ACTIVE_MASK;
+            m_active_tool = NULL;
+            Refresh(false);
+        }
     }
 }