added NormalizeValue() which can be used to ensure that the control value is in range

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40540 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/spinbutt.h

@@ -60,6 +60,9 @@ public:
 protected:
    virtual wxSize DoGetBestSize() const;
 
+   // ensure that the control displays a value in the current range
+   void NormalizeValue() { SetValue(GetValue()); }
+
 private:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxSpinButton)
 };