What action are you talking about?
You had a small mistake in there:
connect ( ui_DesignerAction, SIGNAL(activated()), Singleton::Instance()->getObject2(), SLOT(obj2slot()));
connect ( ui_DesignerAction, SIGNAL(activated()), Singleton::Instance()->getObject2(), SLOT(obj2slot()));
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Singletons will work just fine and it is preferred in this cases. There is no problem( if you implemented it ok).
im assuming from my code not working that you cannot call functions from within the string?
No, it must be something else.
If after correcting the connect statement, if it still doesn't work, then post some code.
Regards
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