Dont send spin text update event from SetValue()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53738 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/spinctrl.h

@@ -122,6 +122,9 @@ protected:
     WXHWND     m_hwndBuddy;
     WXFARPROC  m_wndProcBuddy;
 
+    // Block text update event after SetValue()    
+    bool m_blockEvent;
+
     // all existing wxSpinCtrls - this allows to find the one corresponding to
     // the given buddy window in GetSpinForTextCtrl()
     static wxArraySpins ms_allSpins;