Qt Creator: connecting actions trigged to slots

[ecce]

It is available both as a stand-alone tool as well as integrated in QtCreator.

Where do I find the Qt Designer as a stand alone application? I can find a lot of stuff to download on http://www.qt.io/download-open-source/ but there is no explicit link for the designer as far as I can see.

Just don't connect in QtDesigner, connect in code.

That's what I tried to do first. According to the hierarchy on the top right in QtCreator, I have MainWindow (QMainWindow) ->toolBar (QToolBar) ->actionScan (QAction). So I wrote this line of code:

self.toolBar.actionScan.trigged.connect(scan)

self.toolBar.actionScan.trigged.connect(scan)

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and I got this when I run the code: AttributeError: 'QToolBar' object has no attribute 'actionScan'