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class MyModalDialogHook(wx.ModalDialogHook):
def __init__(self, parent):
wx.ModalDialogHook.__init__(self, parent)
def Enter(self, dialog):
# Just for demonstration purposes, intercept all uses of
# wx.FileDialog. Notice that self doesn't provide any real
# sandboxing, of course, the program can still read and write
# files by not using wx.FileDialog to ask the user for their
# names.
if isinstance(dialog, wx.FileDialog):
wx.LogError("Access to file system disallowed.")
# Skip showing the file dialog entirely.
return wx.ID_CANCEL
self.lastEnter = wx.DateTime.Now()
# Allow the dialog to be shown as usual.
return wx.ID_NONE
def Exit(self, dialog):
# Again, just for demonstration purposes, show how long did
# the user take to dismiss the dialog. Notice that we
# shouldn't use wx.LogMessage() here as self would result in
# another modal dialog call and hence infinite recursion. In
# general, the hooks should be as unintrusive as possible.
wx.LogDebug("%s dialog took %s to be dismissed",
dialog.GetClassInfo().GetClassName(),
(wx.DateTime.Now() - self.lastEnter).Format())
if __name__ == '__main__':
app = wx.App(0)
self.myHook = MyModalDialogHook(None)
self.myHook.Register()
app.MainLoop()
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