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Events

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Events
Using events with wxEuphoria

On Paint
Key Events

Event procedures take 4 arguments:

wxEVT_PAINT

 During a paint event, you need to create a wxPaintDC. This must be destroyed ( delete_instance) before you return from the paint handler. Also, any drawing that is done should be within calls to begin_drawing() and end_drawing(): 
  procedure onPaint( atom this, atom event_type, atom id, atom event )
      atom dc

      dc = create( wxPaintDC, {this} )
      begin_drawing(dc)
      --  ... do drawing here...
      end_drawing(dc)
      delete_instance(dc)
  end procedure

Key Events

Key events under Linux should be set with an id of -1. Also, no events will be passed until the window has been clicked by the user.

Full listing of events as defined in wxEuphoria.e:

Functions/Procedures
Subtopics

Events

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[proc]
set_event_handler ( object this, object id, object event, integer rid )

Category: Events

Set up an event handler. 

ex:
procedure onclose( atom win, atom event )
    exit_main()
end procedure
set_event_handler( myWindow, wxID_EXIT, wxEVT_MENU_SELECTED, routine_id("onclose"))
See class documentation for valid event constants.

Events

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[proc]
skip ( atom event )

Category: Events

Called by an event handler to tell the event system that the event handler should be skipped, and the next valid handler used instead.