I've used QLocalSockets for this:
self._id = "yourIDkey"
self._outSocket = QtNetwork.QLocalSocket()
self._outSocket.
connectToServer(self._id)
self._isRunning = self._outSocket.waitForConnected()
# No running server, that means that the notification dialog
is not being shown by another instance.
if not self._isRunning:
self._outSocket = None
QtNetwork.QLocalServer.removeServer(self._id)
self._server = QtNetwork.QLocalServer()
self._server.listen(self._id)
On Wed, Oct 23, 2013 at 5:40 PM, Frank Rueter <fr...@beingfrank.info> wrote:
> Hi all,
>
>
> has anybody had success with enforcing only one instance of a PySide widget
> when it's registered as a panel?
>
> My app writes data to disk upon certain events and loads that data again
> through the widget's constructor. So I need to make sure that only one
> instance is open at any given time, otherwise I'm running the risk of
> losing/corrupting that data.
>
> Any ideas?
>
> Cheers,
> frank
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--
Jose Fernandez de Castro
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