make it possible to have flickerless splitter by not forcing repaint on resize

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@22217 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/splitter.cpp

@@ -70,6 +70,10 @@ bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id,
     // allow TABbing from one window to the other
     style |= wxTAB_TRAVERSAL;
 
+    // we don't need to be completely repainted after resize and doing it
+    // results in horrible flicker
+    style |= wxNO_FULL_REPAINT_ON_RESIZE;
+
     if (!wxWindow::Create(parent, id, pos, size, style, name))
         return FALSE;