Reduce the scope of some local variables

samples/richtext/richtext.cpp

@@ -1613,11 +1613,11 @@ void MyFrame::OnUpdateFormat(wxUpdateUIEvent& event)
 void MyFrame::OnUpdateImage(wxUpdateUIEvent& event)
 {
     wxRichTextRange range;
-    wxRichTextObject *obj;
 
     range = m_richTextCtrl->GetSelectionRange();
     if (range.ToInternal().GetLength() == 1)
     {
+        wxRichTextObject *obj;
         obj = m_richTextCtrl->GetFocusObject()->GetLeafObjectAtPosition(range.GetStart());
         if (obj && obj->IsKindOf(CLASSINFO(wxRichTextImage)))
         {

samples/vscroll/vstest.cpp

@@ -343,13 +343,12 @@ public:
         wxSize clientSize = GetClientSize();
 
         wxCoord y = 0;
-        wxCoord x = 0;
         for ( size_t row = rowFirst; row < rowLast; row++ )
         {
             wxCoord rowHeight = OnGetRowHeight(row);
             dc.DrawLine(0, y, clientSize.GetWidth(), y);
 
-            x = 0;
+            wxCoord x = 0;
             for ( size_t col = columnFirst; col < columnLast; col++ )
             {
                 wxCoord colWidth = OnGetColumnWidth(col);