.. wxPython Phoenix documentation

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   License:   wxWindows License

.. include:: headings.inc



.. _wx.EventBlocker:

==========================================================================================================================================
|phoenix_title|  **wx.EventBlocker**
==========================================================================================================================================

This class is a special event handler which allows discarding any event (or a set of event types) directed to a specific window.          

Example: 

::

        def DoSomething(self):
            # block all events directed to this window while
            # we do the 1000 FunctionWhichSendsEvents() calls
            with wx.EventBlocker(self) as blocker:

                for i in xrange(1000):
                    FunctionWhichSendsEvents(i)

            # wx.EventBlocker destructor called on exit from the context
            # manager, old event handlers are restored.

            # the event generated by this call will be processed:
            FunctionWhichSendsEvents(0)









         



.. seealso:: :ref:`How Events are Processed <how events are processed>`, :ref:`wx.EvtHandler`    







|

|class_hierarchy| Class Hierarchy
=================================

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   Inheritance diagram for class <strong>EventBlocker</strong>:
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|


|method_summary| Methods Summary
================================

================================================================================ ================================================================================
:meth:`~wx.EventBlocker.__init__`                                                Constructs the blocker for the given window and for the given event type.
:meth:`~wx.EventBlocker.Block`                                                   Adds to the list of event types which should be blocked the given `eventType`.
:meth:`~wx.EventBlocker.__enter__`                                               
:meth:`~wx.EventBlocker.__exit__`                                                
================================================================================ ================================================================================


|


|api| Class API
===============


.. class:: wx.EventBlocker(EvtHandler)

   **Possible constructors**::

       EventBlocker(win, type=-1)
       
   
   This class is a special event handler which allows discarding any
   event (or a set of event types) directed to a specific window.



   .. method:: __init__(self, win, type=-1)

      Constructs the blocker for the given window and for the given event type.                  

      If `type`  is  ``wxEVT_ANY`` , then all events for that window are blocked. You can call  :meth:`Block`   after creation to add other event types to the list of events to block. 

      Note that the `win`  window **must**  remain alive until the :ref:`wx.EventBlocker`  object destruction.                  


      :param `win`: 
      :type `win`: wx.Window
      :param `type`: 
      :type `type`: wx.EventType







   .. method:: Block(self, eventType)

      Adds to the list of event types which should be blocked the given `eventType`.                  


      :param `eventType`: 
      :type `eventType`: wx.EventType







   .. method:: __enter__(self)




   .. method:: __exit__(self, exc_type, exc_val, exc_tb)



