from wxPython.wx import *

class myTextCtrl(wxTextCtrl):
    def __init__(self, *_args, **_kwargs):        
        wxTextCtrl.__init__(self, *_args, **_kwargs)
        EVT_MOUSE_EVENTS(self, self.OnMouseEvent)
        EVT_TEXT(self,  self.EvtText)
        EVT_CHAR(self, self.EvtChar)        
        self.focus = false

    def OnMouseEvent(self,event):        
        if event.LeftDown():#mouse down
            if not self.focus:
                print 'Highlight'
            self.focus = true

    def EvtText(self,event):
        pass
    
    def EvtChar(self,event):
        pass

class ViewerFrame(wxFrame):
    def __init__(self, parent, id, title):        
        wxFrame.__init__(self, parent, id, title,wxDefaultPosition,wxDefaultSize)
        mything = myTextCtrlt1 = wxTextCtrl(self, 10, "Test", size=(125, -1))

class MyApp(wxApp):   
    def OnInit(self):        
        frame = ViewerFrame(NULL, -1, "Test")
        frame.Show(true)
        self.SetTopWindow(frame) 
        return true
    
app = MyApp(0)
app.MainLoop()