add wxProgressDialog::SetRange() function

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60867 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/progdlg.h

@@ -128,6 +128,15 @@ public:
     */
     void Resume();
 
+    /**
+        Changes the maximum value of the progress meter given in the constructor.
+        This function can only be called (with a positive value) if the value passed 
+        in the constructor was positive.
+
+        @since 2.9.1
+    */
+    void SetRange(int maximum);
+
     /**
         Updates the dialog, setting the progress bar to the new value and
         updating the message if new one is specified.