Minor improvements to wxEVT_COMMAND_DIRCTRL_CHANGED generation.

Set the event object for this event. Also don't skip the original tree event
if the wxEVT_COMMAND_DIRCTRL_CHANGED event was handled and disallowed.

Closes #14792.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72912 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/dirctrlg.cpp

@@ -705,11 +705,18 @@ void wxGenericDirCtrl::OnTreeSelChange(wxTreeEvent &event)
 {
     wxTreeEvent changedEvent(wxEVT_COMMAND_DIRCTRL_CHANGED, GetId());
 
+    changedEvent.SetEventObject(this);
     changedEvent.SetItem(event.GetItem());
     changedEvent.SetClientObject(m_treeCtrl->GetItemData(event.GetItem()));
 
-    GetEventHandler()->SafelyProcessEvent(changedEvent);
-    event.Skip();
+    if (GetEventHandler()->SafelyProcessEvent(changedEvent) && !changedEvent.IsAllowed())
+    {
+        event.Veto();
+    }
+    else
+    {
+        event.Skip();
+    }
 }
 
 void wxGenericDirCtrl::OnExpandItem(wxTreeEvent &event)