Vicent Mas schrieb:
Hi,
thanks for your answer. I've been working about the TypeError and I've found
that the call
my_scrollbar.triggerAction(QtGui.QAbstractSlider.SliderSingleStepAdd)
works
but the (apparently equivalent) call
my_scrollbar.triggerAction(1)
fails raising the TypeError. However QAbstractSlider.SliderSingleStepAdd is
supposed to have an integer value of 1, isn't it? At least this is what I
understand when reading the Qt docs.
No, its an enum. It looks like int is not implicitly converted to the
required enum type. Interesting. Probably there is more info in the SIP
docs.
>>> from PyQt4.QtGui import *
>>> type(QAbstractSlider.SliderSingleStepAdd)
<class 'PyQt4.QtGui.SliderAction'>
>>> a = QAbstractSlider.SliderAction(1)
>>> type(a)
<class 'PyQt4.QtGui.SliderAction'>
>>> a == QAbstractSlider.SliderSingleStepAdd
True
So I think
my_scrollbar.triggerAction(QAbstractSlider.SliderAction(1))
will do what you want.
Even more, the actionTriggered SIGNAL passes integer values to the slot it is
connected. So I supposed that I could use this values directly for triggering
the same action in other scrollbar, but I cannot. Instead the constants names
have to be used. Could you (or somebody else :-) tell me why?
Make sure your 'values' have the correct type - see above.
Regards
Georg
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