Added wxSHOW_EFFECT_NONE.

Calling Show/HideWithEffect() with this effect is the same as calling just the normal Show/Hide().

This is convenient as it allows to use the same API, whether with effects or without them.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62267 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/shaped/shaped.cpp

@@ -181,6 +181,7 @@ private:
     {
         static const char *names[] =
         {
+            "none",
             "roll to left",
             "roll to right",
             "roll to top",
@@ -346,7 +347,7 @@ void MainFrame::OnShowEffect(wxCommandEvent& event)
             return;
     }
 
-    new EffectFrame(this, eff,1000);
+    new EffectFrame(this,  eff, 1000);
 }
 
 // ----------------------------------------------------------------------------